How To: Ordinal Number 9 999 999 995 171 555 713 591 476 591 486 487 656 059 569 718 914 756 947 165 914 765 911 756 914 756 914 755 914 755 814 756 881 748 235 171 587 155 871 558 175 581 756 817 558 175 845 556 587 115 681 715 688 174 258 671 456 887 145 658 147 565 811 756 587 145 659 157 565 914 756 595 715 869 157 915 795 719 517 951 761 579 517 971 591 579 956 184 568 456 848 564 568 456 845 608 455 851 464 568 456 843 Written Out in Words Form, Indicates Position or Order in a List. Numeral 9 999 999 995 171 555 713 591 476 591 486 487 656 059 569 718 914 756 947 165 914 765 911 756 914 756 914 755 914 755 814 756 881 748 235 171 587 155 871 558 175 581 756 817 558 175 845 556 587 115 681 715 688 174 258 671 456 887 145 658 147 565 811 756 587 145 659 157 565 914 756 595 715 869 157 915 795 719 517 951 761 579 517 971 591 579 956 184 568 456 848 564 568 456 845 608 455 851 464 568 456 843 Converted to Words in US American English in Eight Different Letter Cases, Title Case, Sentence Case and Start Case Included

Ordinal number 9 999 999 995 171 555 713 591 476 591 486 487 656 059 569 718 914 756 947 165 914 765 911 756 914 756 914 755 914 755 814 756 881 748 235 171 587 155 871 558 175 581 756 817 558 175 845 556 587 115 681 715 688 174 258 671 456 887 145 658 147 565 811 756 587 145 659 157 565 914 756 595 715 869 157 915 795 719 517 951 761 579 517 971 591 579 956 184 568 456 848 564 568 456 845 608 455 851 464 568 456 843rd converted and written out in words, in (US) American English

nine centillion nine hundred ninety-nine novemnonagintillion nine hundred ninety-nine octononagintillion nine hundred ninety-five septennonagintillion one hundred seventy-one sexnonagintillion five hundred fifty-five quinnonagintillion seven hundred thirteen quattuornonagintillion five hundred ninety-one trenonagintillion four hundred seventy-six duononagintillion five hundred ninety-one unnonagintillion four hundred eighty-six nonagintillion four hundred eighty-seven novemoctogintillion six hundred fifty-six octooctogintillion fifty-nine septenoctogintillion five hundred sixty-nine sexoctogintillion seven hundred eighteen quinoctogintillion nine hundred fourteen quattuoroctogintillion seven hundred fifty-six treoctogintillion nine hundred forty-seven duooctogintillion one hundred sixty-five unoctogintillion nine hundred fourteen octogintillion seven hundred sixty-five novemseptuagintillion nine hundred eleven octoseptuagintillion seven hundred fifty-six septenseptuagintillion nine hundred fourteen sexseptuagintillion seven hundred fifty-six quinseptuagintillion nine hundred fourteen quattuorseptuagintillion seven hundred fifty-five treseptuagintillion nine hundred fourteen duoseptuagintillion seven hundred fifty-five unseptuagintillion eight hundred fourteen septuagintillion seven hundred fifty-six novemsexagintillion eight hundred eighty-one octosexagintillion seven hundred forty-eight septensexagintillion two hundred thirty-five sexsexagintillion one hundred seventy-one quinsexagintillion five hundred eighty-seven quattuorsexagintillion one hundred fifty-five tresexagintillion eight hundred seventy-one duosexagintillion five hundred fifty-eight unsexagintillion one hundred seventy-five sexagintillion five hundred eighty-one novemquinquagintillion seven hundred fifty-six octoquinquagintillion eight hundred seventeen septenquinquagintillion five hundred fifty-eight sexquinquagintillion one hundred seventy-five quinquinquagintillion eight hundred forty-five quattuorquinquagintillion five hundred fifty-six trequinquagintillion five hundred eighty-seven duoquinquagintillion one hundred fifteen unquinquagintillion six hundred eighty-one quinquagintillion seven hundred fifteen novemquadragintillion six hundred eighty-eight octoquadragintillion one hundred seventy-four septenquadragintillion two hundred fifty-eight sexquadragintillion six hundred seventy-one quinquadragintillion four hundred fifty-six quattuorquadragintillion eight hundred eighty-seven trequadragintillion one hundred forty-five duoquadragintillion six hundred fifty-eight unquadragintillion one hundred forty-seven quadragintillion five hundred sixty-five novemtrigintillion eight hundred eleven octotrigintillion seven hundred fifty-six septentrigintillion five hundred eighty-seven sextrigintillion one hundred forty-five quintrigintillion six hundred fifty-nine quattuortrigintillion one hundred fifty-seven tretrigintillion five hundred sixty-five duotrigintillion nine hundred fourteen untrigintillion seven hundred fifty-six trigintillion five hundred ninety-five novemvigintillion seven hundred fifteen octovigintillion eight hundred sixty-nine septenvigintillion one hundred fifty-seven sexvigintillion nine hundred fifteen quinvigintillion seven hundred ninety-five quattuorvigintillion seven hundred nineteen trevigintillion five hundred seventeen duovigintillion nine hundred fifty-one unvigintillion seven hundred sixty-one vigintillion five hundred seventy-nine novemdecillion five hundred seventeen octodecillion nine hundred seventy-one septendecillion five hundred ninety-one sexdecillion five hundred seventy-nine quindecillion nine hundred fifty-six quattuordecillion one hundred eighty-four tredecillion five hundred sixty-eight duodecillion four hundred fifty-six undecillion eight hundred forty-eight decillion five hundred sixty-four nonillion five hundred sixty-eight octillion four hundred fifty-six septillion eight hundred forty-five sextillion six hundred eight quintillion four hundred fifty-five quadrillion eight hundred fifty-one trillion four hundred sixty-four billion five hundred sixty-eight million four hundred fifty-six thousand eight hundred forty-third

Letter case 2 of 8
9 999 999 995 171 555 713 591 476 591 486 487 656 059 569 718 914 756 947 165 914 765 911 756 914 756 914 755 914 755 814 756 881 748 235 171 587 155 871 558 175 581 756 817 558 175 845 556 587 115 681 715 688 174 258 671 456 887 145 658 147 565 811 756 587 145 659 157 565 914 756 595 715 869 157 915 795 719 517 951 761 579 517 971 591 579 956 184 568 456 848 564 568 456 845 608 455 851 464 568 456 843rd SPELLED OUT IN:
UPPERCASE
ALL UPPERCASE LETTERS:

NINE CENTILLION NINE HUNDRED NINETY-NINE NOVEMNONAGINTILLION NINE HUNDRED NINETY-NINE OCTONONAGINTILLION NINE HUNDRED NINETY-FIVE SEPTENNONAGINTILLION ONE HUNDRED SEVENTY-ONE SEXNONAGINTILLION FIVE HUNDRED FIFTY-FIVE QUINNONAGINTILLION SEVEN HUNDRED THIRTEEN QUATTUORNONAGINTILLION FIVE HUNDRED NINETY-ONE TRENONAGINTILLION FOUR HUNDRED SEVENTY-SIX DUONONAGINTILLION FIVE HUNDRED NINETY-ONE UNNONAGINTILLION FOUR HUNDRED EIGHTY-SIX NONAGINTILLION FOUR HUNDRED EIGHTY-SEVEN NOVEMOCTOGINTILLION SIX HUNDRED FIFTY-SIX OCTOOCTOGINTILLION FIFTY-NINE SEPTENOCTOGINTILLION FIVE HUNDRED SIXTY-NINE SEXOCTOGINTILLION SEVEN HUNDRED EIGHTEEN QUINOCTOGINTILLION NINE HUNDRED FOURTEEN QUATTUOROCTOGINTILLION SEVEN HUNDRED FIFTY-SIX TREOCTOGINTILLION NINE HUNDRED FORTY-SEVEN DUOOCTOGINTILLION ONE HUNDRED SIXTY-FIVE UNOCTOGINTILLION NINE HUNDRED FOURTEEN OCTOGINTILLION SEVEN HUNDRED SIXTY-FIVE NOVEMSEPTUAGINTILLION NINE HUNDRED ELEVEN OCTOSEPTUAGINTILLION SEVEN HUNDRED FIFTY-SIX SEPTENSEPTUAGINTILLION NINE HUNDRED FOURTEEN SEXSEPTUAGINTILLION SEVEN HUNDRED FIFTY-SIX QUINSEPTUAGINTILLION NINE HUNDRED FOURTEEN QUATTUORSEPTUAGINTILLION SEVEN HUNDRED FIFTY-FIVE TRESEPTUAGINTILLION NINE HUNDRED FOURTEEN DUOSEPTUAGINTILLION SEVEN HUNDRED FIFTY-FIVE UNSEPTUAGINTILLION EIGHT HUNDRED FOURTEEN SEPTUAGINTILLION SEVEN HUNDRED FIFTY-SIX NOVEMSEXAGINTILLION EIGHT HUNDRED EIGHTY-ONE OCTOSEXAGINTILLION SEVEN HUNDRED FORTY-EIGHT SEPTENSEXAGINTILLION TWO HUNDRED THIRTY-FIVE SEXSEXAGINTILLION ONE HUNDRED SEVENTY-ONE QUINSEXAGINTILLION FIVE HUNDRED EIGHTY-SEVEN QUATTUORSEXAGINTILLION ONE HUNDRED FIFTY-FIVE TRESEXAGINTILLION EIGHT HUNDRED SEVENTY-ONE DUOSEXAGINTILLION FIVE HUNDRED FIFTY-EIGHT UNSEXAGINTILLION ONE HUNDRED SEVENTY-FIVE SEXAGINTILLION FIVE HUNDRED EIGHTY-ONE NOVEMQUINQUAGINTILLION SEVEN HUNDRED FIFTY-SIX OCTOQUINQUAGINTILLION EIGHT HUNDRED SEVENTEEN SEPTENQUINQUAGINTILLION FIVE HUNDRED FIFTY-EIGHT SEXQUINQUAGINTILLION ONE HUNDRED SEVENTY-FIVE QUINQUINQUAGINTILLION EIGHT HUNDRED FORTY-FIVE QUATTUORQUINQUAGINTILLION FIVE HUNDRED FIFTY-SIX TREQUINQUAGINTILLION FIVE HUNDRED EIGHTY-SEVEN DUOQUINQUAGINTILLION ONE HUNDRED FIFTEEN UNQUINQUAGINTILLION SIX HUNDRED EIGHTY-ONE QUINQUAGINTILLION SEVEN HUNDRED FIFTEEN NOVEMQUADRAGINTILLION SIX HUNDRED EIGHTY-EIGHT OCTOQUADRAGINTILLION ONE HUNDRED SEVENTY-FOUR SEPTENQUADRAGINTILLION TWO HUNDRED FIFTY-EIGHT SEXQUADRAGINTILLION SIX HUNDRED SEVENTY-ONE QUINQUADRAGINTILLION FOUR HUNDRED FIFTY-SIX QUATTUORQUADRAGINTILLION EIGHT HUNDRED EIGHTY-SEVEN TREQUADRAGINTILLION ONE HUNDRED FORTY-FIVE DUOQUADRAGINTILLION SIX HUNDRED FIFTY-EIGHT UNQUADRAGINTILLION ONE HUNDRED FORTY-SEVEN QUADRAGINTILLION FIVE HUNDRED SIXTY-FIVE NOVEMTRIGINTILLION EIGHT HUNDRED ELEVEN OCTOTRIGINTILLION SEVEN HUNDRED FIFTY-SIX SEPTENTRIGINTILLION FIVE HUNDRED EIGHTY-SEVEN SEXTRIGINTILLION ONE HUNDRED FORTY-FIVE QUINTRIGINTILLION SIX HUNDRED FIFTY-NINE QUATTUORTRIGINTILLION ONE HUNDRED FIFTY-SEVEN TRETRIGINTILLION FIVE HUNDRED SIXTY-FIVE DUOTRIGINTILLION NINE HUNDRED FOURTEEN UNTRIGINTILLION SEVEN HUNDRED FIFTY-SIX TRIGINTILLION FIVE HUNDRED NINETY-FIVE NOVEMVIGINTILLION SEVEN HUNDRED FIFTEEN OCTOVIGINTILLION EIGHT HUNDRED SIXTY-NINE SEPTENVIGINTILLION ONE HUNDRED FIFTY-SEVEN SEXVIGINTILLION NINE HUNDRED FIFTEEN QUINVIGINTILLION SEVEN HUNDRED NINETY-FIVE QUATTUORVIGINTILLION SEVEN HUNDRED NINETEEN TREVIGINTILLION FIVE HUNDRED SEVENTEEN DUOVIGINTILLION NINE HUNDRED FIFTY-ONE UNVIGINTILLION SEVEN HUNDRED SIXTY-ONE VIGINTILLION FIVE HUNDRED SEVENTY-NINE NOVEMDECILLION FIVE HUNDRED SEVENTEEN OCTODECILLION NINE HUNDRED SEVENTY-ONE SEPTENDECILLION FIVE HUNDRED NINETY-ONE SEXDECILLION FIVE HUNDRED SEVENTY-NINE QUINDECILLION NINE HUNDRED FIFTY-SIX QUATTUORDECILLION ONE HUNDRED EIGHTY-FOUR TREDECILLION FIVE HUNDRED SIXTY-EIGHT DUODECILLION FOUR HUNDRED FIFTY-SIX UNDECILLION EIGHT HUNDRED FORTY-EIGHT DECILLION FIVE HUNDRED SIXTY-FOUR NONILLION FIVE HUNDRED SIXTY-EIGHT OCTILLION FOUR HUNDRED FIFTY-SIX SEPTILLION EIGHT HUNDRED FORTY-FIVE SEXTILLION SIX HUNDRED EIGHT QUINTILLION FOUR HUNDRED FIFTY-FIVE QUADRILLION EIGHT HUNDRED FIFTY-ONE TRILLION FOUR HUNDRED SIXTY-FOUR BILLION FIVE HUNDRED SIXTY-EIGHT MILLION FOUR HUNDRED FIFTY-SIX THOUSAND EIGHT HUNDRED FORTY-THIRD

Nine Centillion Nine Hundred Ninety-Nine Novemnonagintillion Nine Hundred Ninety-Nine Octononagintillion Nine Hundred Ninety-Five Septennonagintillion One Hundred Seventy-One Sexnonagintillion Five Hundred Fifty-Five Quinnonagintillion Seven Hundred Thirteen Quattuornonagintillion Five Hundred Ninety-One Trenonagintillion Four Hundred Seventy-Six Duononagintillion Five Hundred Ninety-One Unnonagintillion Four Hundred Eighty-Six Nonagintillion Four Hundred Eighty-Seven Novemoctogintillion Six Hundred Fifty-Six Octooctogintillion Fifty-Nine Septenoctogintillion Five Hundred Sixty-Nine Sexoctogintillion Seven Hundred Eighteen Quinoctogintillion Nine Hundred Fourteen Quattuoroctogintillion Seven Hundred Fifty-Six Treoctogintillion Nine Hundred Forty-Seven Duooctogintillion One Hundred Sixty-Five Unoctogintillion Nine Hundred Fourteen Octogintillion Seven Hundred Sixty-Five Novemseptuagintillion Nine Hundred Eleven Octoseptuagintillion Seven Hundred Fifty-Six Septenseptuagintillion Nine Hundred Fourteen Sexseptuagintillion Seven Hundred Fifty-Six Quinseptuagintillion Nine Hundred Fourteen Quattuorseptuagintillion Seven Hundred Fifty-Five Treseptuagintillion Nine Hundred Fourteen Duoseptuagintillion Seven Hundred Fifty-Five Unseptuagintillion Eight Hundred Fourteen Septuagintillion Seven Hundred Fifty-Six Novemsexagintillion Eight Hundred Eighty-One Octosexagintillion Seven Hundred Forty-Eight Septensexagintillion Two Hundred Thirty-Five Sexsexagintillion One Hundred Seventy-One Quinsexagintillion Five Hundred Eighty-Seven Quattuorsexagintillion One Hundred Fifty-Five Tresexagintillion Eight Hundred Seventy-One Duosexagintillion Five Hundred Fifty-Eight Unsexagintillion One Hundred Seventy-Five Sexagintillion Five Hundred Eighty-One Novemquinquagintillion Seven Hundred Fifty-Six Octoquinquagintillion Eight Hundred Seventeen Septenquinquagintillion Five Hundred Fifty-Eight Sexquinquagintillion One Hundred Seventy-Five Quinquinquagintillion Eight Hundred Forty-Five Quattuorquinquagintillion Five Hundred Fifty-Six Trequinquagintillion Five Hundred Eighty-Seven Duoquinquagintillion One Hundred Fifteen Unquinquagintillion Six Hundred Eighty-One Quinquagintillion Seven Hundred Fifteen Novemquadragintillion Six Hundred Eighty-Eight Octoquadragintillion One Hundred Seventy-Four Septenquadragintillion Two Hundred Fifty-Eight Sexquadragintillion Six Hundred Seventy-One Quinquadragintillion Four Hundred Fifty-Six Quattuorquadragintillion Eight Hundred Eighty-Seven Trequadragintillion One Hundred Forty-Five Duoquadragintillion Six Hundred Fifty-Eight Unquadragintillion One Hundred Forty-Seven Quadragintillion Five Hundred Sixty-Five Novemtrigintillion Eight Hundred Eleven Octotrigintillion Seven Hundred Fifty-Six Septentrigintillion Five Hundred Eighty-Seven Sextrigintillion One Hundred Forty-Five Quintrigintillion Six Hundred Fifty-Nine Quattuortrigintillion One Hundred Fifty-Seven Tretrigintillion Five Hundred Sixty-Five Duotrigintillion Nine Hundred Fourteen Untrigintillion Seven Hundred Fifty-Six Trigintillion Five Hundred Ninety-Five Novemvigintillion Seven Hundred Fifteen Octovigintillion Eight Hundred Sixty-Nine Septenvigintillion One Hundred Fifty-Seven Sexvigintillion Nine Hundred Fifteen Quinvigintillion Seven Hundred Ninety-Five Quattuorvigintillion Seven Hundred Nineteen Trevigintillion Five Hundred Seventeen Duovigintillion Nine Hundred Fifty-One Unvigintillion Seven Hundred Sixty-One Vigintillion Five Hundred Seventy-Nine Novemdecillion Five Hundred Seventeen Octodecillion Nine Hundred Seventy-One Septendecillion Five Hundred Ninety-One Sexdecillion Five Hundred Seventy-Nine Quindecillion Nine Hundred Fifty-Six Quattuordecillion One Hundred Eighty-Four Tredecillion Five Hundred Sixty-Eight Duodecillion Four Hundred Fifty-Six Undecillion Eight Hundred Forty-Eight Decillion Five Hundred Sixty-Four Nonillion Five Hundred Sixty-Eight Octillion Four Hundred Fifty-Six Septillion Eight Hundred Forty-Five Sextillion Six Hundred Eight Quintillion Four Hundred Fifty-Five Quadrillion Eight Hundred Fifty-One Trillion Four Hundred Sixty-Four Billion Five Hundred Sixty-Eight Million Four Hundred Fifty-Six Thousand Eight Hundred Forty-Third

Letter case 4 of 8
9 999 999 995 171 555 713 591 476 591 486 487 656 059 569 718 914 756 947 165 914 765 911 756 914 756 914 755 914 755 814 756 881 748 235 171 587 155 871 558 175 581 756 817 558 175 845 556 587 115 681 715 688 174 258 671 456 887 145 658 147 565 811 756 587 145 659 157 565 914 756 595 715 869 157 915 795 719 517 951 761 579 517 971 591 579 956 184 568 456 848 564 568 456 845 608 455 851 464 568 456 843rd written out in words in:
Sentence case
Capital letter to start the sentence:

Nine centillion nine hundred ninety-nine novemnonagintillion nine hundred ninety-nine octononagintillion nine hundred ninety-five septennonagintillion one hundred seventy-one sexnonagintillion five hundred fifty-five quinnonagintillion seven hundred thirteen quattuornonagintillion five hundred ninety-one trenonagintillion four hundred seventy-six duononagintillion five hundred ninety-one unnonagintillion four hundred eighty-six nonagintillion four hundred eighty-seven novemoctogintillion six hundred fifty-six octooctogintillion fifty-nine septenoctogintillion five hundred sixty-nine sexoctogintillion seven hundred eighteen quinoctogintillion nine hundred fourteen quattuoroctogintillion seven hundred fifty-six treoctogintillion nine hundred forty-seven duooctogintillion one hundred sixty-five unoctogintillion nine hundred fourteen octogintillion seven hundred sixty-five novemseptuagintillion nine hundred eleven octoseptuagintillion seven hundred fifty-six septenseptuagintillion nine hundred fourteen sexseptuagintillion seven hundred fifty-six quinseptuagintillion nine hundred fourteen quattuorseptuagintillion seven hundred fifty-five treseptuagintillion nine hundred fourteen duoseptuagintillion seven hundred fifty-five unseptuagintillion eight hundred fourteen septuagintillion seven hundred fifty-six novemsexagintillion eight hundred eighty-one octosexagintillion seven hundred forty-eight septensexagintillion two hundred thirty-five sexsexagintillion one hundred seventy-one quinsexagintillion five hundred eighty-seven quattuorsexagintillion one hundred fifty-five tresexagintillion eight hundred seventy-one duosexagintillion five hundred fifty-eight unsexagintillion one hundred seventy-five sexagintillion five hundred eighty-one novemquinquagintillion seven hundred fifty-six octoquinquagintillion eight hundred seventeen septenquinquagintillion five hundred fifty-eight sexquinquagintillion one hundred seventy-five quinquinquagintillion eight hundred forty-five quattuorquinquagintillion five hundred fifty-six trequinquagintillion five hundred eighty-seven duoquinquagintillion one hundred fifteen unquinquagintillion six hundred eighty-one quinquagintillion seven hundred fifteen novemquadragintillion six hundred eighty-eight octoquadragintillion one hundred seventy-four septenquadragintillion two hundred fifty-eight sexquadragintillion six hundred seventy-one quinquadragintillion four hundred fifty-six quattuorquadragintillion eight hundred eighty-seven trequadragintillion one hundred forty-five duoquadragintillion six hundred fifty-eight unquadragintillion one hundred forty-seven quadragintillion five hundred sixty-five novemtrigintillion eight hundred eleven octotrigintillion seven hundred fifty-six septentrigintillion five hundred eighty-seven sextrigintillion one hundred forty-five quintrigintillion six hundred fifty-nine quattuortrigintillion one hundred fifty-seven tretrigintillion five hundred sixty-five duotrigintillion nine hundred fourteen untrigintillion seven hundred fifty-six trigintillion five hundred ninety-five novemvigintillion seven hundred fifteen octovigintillion eight hundred sixty-nine septenvigintillion one hundred fifty-seven sexvigintillion nine hundred fifteen quinvigintillion seven hundred ninety-five quattuorvigintillion seven hundred nineteen trevigintillion five hundred seventeen duovigintillion nine hundred fifty-one unvigintillion seven hundred sixty-one vigintillion five hundred seventy-nine novemdecillion five hundred seventeen octodecillion nine hundred seventy-one septendecillion five hundred ninety-one sexdecillion five hundred seventy-nine quindecillion nine hundred fifty-six quattuordecillion one hundred eighty-four tredecillion five hundred sixty-eight duodecillion four hundred fifty-six undecillion eight hundred forty-eight decillion five hundred sixty-four nonillion five hundred sixty-eight octillion four hundred fifty-six septillion eight hundred forty-five sextillion six hundred eight quintillion four hundred fifty-five quadrillion eight hundred fifty-one trillion four hundred sixty-four billion five hundred sixty-eight million four hundred fifty-six thousand eight hundred forty-third


Nine Centillion Nine Hundred Ninety-Nine Novemnonagintillion Nine Hundred Ninety-Nine Octononagintillion Nine Hundred Ninety-Five Septennonagintillion One Hundred Seventy-One Sexnonagintillion Five Hundred Fifty-Five Quinnonagintillion Seven Hundred Thirteen Quattuornonagintillion Five Hundred Ninety-One Trenonagintillion Four Hundred Seventy-Six Duononagintillion Five Hundred Ninety-One Unnonagintillion Four Hundred Eighty-Six Nonagintillion Four Hundred Eighty-Seven Novemoctogintillion Six Hundred Fifty-Six Octooctogintillion Fifty-Nine Septenoctogintillion Five Hundred Sixty-Nine Sexoctogintillion Seven Hundred Eighteen Quinoctogintillion Nine Hundred Fourteen Quattuoroctogintillion Seven Hundred Fifty-Six Treoctogintillion Nine Hundred Forty-Seven Duooctogintillion One Hundred Sixty-Five Unoctogintillion Nine Hundred Fourteen Octogintillion Seven Hundred Sixty-Five Novemseptuagintillion Nine Hundred Eleven Octoseptuagintillion Seven Hundred Fifty-Six Septenseptuagintillion Nine Hundred Fourteen Sexseptuagintillion Seven Hundred Fifty-Six Quinseptuagintillion Nine Hundred Fourteen Quattuorseptuagintillion Seven Hundred Fifty-Five Treseptuagintillion Nine Hundred Fourteen Duoseptuagintillion Seven Hundred Fifty-Five Unseptuagintillion Eight Hundred Fourteen Septuagintillion Seven Hundred Fifty-Six Novemsexagintillion Eight Hundred Eighty-One Octosexagintillion Seven Hundred Forty-Eight Septensexagintillion Two Hundred Thirty-Five Sexsexagintillion One Hundred Seventy-One Quinsexagintillion Five Hundred Eighty-Seven Quattuorsexagintillion One Hundred Fifty-Five Tresexagintillion Eight Hundred Seventy-One Duosexagintillion Five Hundred Fifty-Eight Unsexagintillion One Hundred Seventy-Five Sexagintillion Five Hundred Eighty-One Novemquinquagintillion Seven Hundred Fifty-Six Octoquinquagintillion Eight Hundred Seventeen Septenquinquagintillion Five Hundred Fifty-Eight Sexquinquagintillion One Hundred Seventy-Five Quinquinquagintillion Eight Hundred Forty-Five Quattuorquinquagintillion Five Hundred Fifty-Six Trequinquagintillion Five Hundred Eighty-Seven Duoquinquagintillion One Hundred Fifteen Unquinquagintillion Six Hundred Eighty-One Quinquagintillion Seven Hundred Fifteen Novemquadragintillion Six Hundred Eighty-Eight Octoquadragintillion One Hundred Seventy-Four Septenquadragintillion Two Hundred Fifty-Eight Sexquadragintillion Six Hundred Seventy-One Quinquadragintillion Four Hundred Fifty-Six Quattuorquadragintillion Eight Hundred Eighty-Seven Trequadragintillion One Hundred Forty-Five Duoquadragintillion Six Hundred Fifty-Eight Unquadragintillion One Hundred Forty-Seven Quadragintillion Five Hundred Sixty-Five Novemtrigintillion Eight Hundred Eleven Octotrigintillion Seven Hundred Fifty-Six Septentrigintillion Five Hundred Eighty-Seven Sextrigintillion One Hundred Forty-Five Quintrigintillion Six Hundred Fifty-Nine Quattuortrigintillion One Hundred Fifty-Seven Tretrigintillion Five Hundred Sixty-Five Duotrigintillion Nine Hundred Fourteen Untrigintillion Seven Hundred Fifty-Six Trigintillion Five Hundred Ninety-Five Novemvigintillion Seven Hundred Fifteen Octovigintillion Eight Hundred Sixty-Nine Septenvigintillion One Hundred Fifty-Seven Sexvigintillion Nine Hundred Fifteen Quinvigintillion Seven Hundred Ninety-Five Quattuorvigintillion Seven Hundred Nineteen Trevigintillion Five Hundred Seventeen Duovigintillion Nine Hundred Fifty-One Unvigintillion Seven Hundred Sixty-One Vigintillion Five Hundred Seventy-Nine Novemdecillion Five Hundred Seventeen Octodecillion Nine Hundred Seventy-One Septendecillion Five Hundred Ninety-One Sexdecillion Five Hundred Seventy-Nine Quindecillion Nine Hundred Fifty-Six Quattuordecillion One Hundred Eighty-Four Tredecillion Five Hundred Sixty-Eight Duodecillion Four Hundred Fifty-Six Undecillion Eight Hundred Forty-Eight Decillion Five Hundred Sixty-Four Nonillion Five Hundred Sixty-Eight Octillion Four Hundred Fifty-Six Septillion Eight Hundred Forty-Five Sextillion Six Hundred Eight Quintillion Four Hundred Fifty-Five Quadrillion Eight Hundred Fifty-One Trillion Four Hundred Sixty-Four Billion Five Hundred Sixty-Eight Million Four Hundred Fifty-Six Thousand Eight Hundred Forty-Third

Letter case 6 of 8
9 999 999 995 171 555 713 591 476 591 486 487 656 059 569 718 914 756 947 165 914 765 911 756 914 756 914 755 914 755 814 756 881 748 235 171 587 155 871 558 175 581 756 817 558 175 845 556 587 115 681 715 688 174 258 671 456 887 145 658 147 565 811 756 587 145 659 157 565 914 756 595 715 869 157 915 795 719 517 951 761 579 517 971 591 579 956 184 568 456 848 564 568 456 845 608 455 851 464 568 456 843rd Converted to words in:
camelCase
first letter in lower case,
subsequent words' first letters in uppercase
spaces and punctuation removed:

nineCentillionNineHundredNinetyNineNovemnonagintillionNineHundredNinetyNineOctononagintillionNineHundredNinetyFiveSeptennonagintillionOneHundredSeventyOneSexnonagintillionFiveHundredFiftyFiveQuinnonagintillionSevenHundredThirteenQuattuornonagintillionFiveHundredNinetyOneTrenonagintillionFourHundredSeventySixDuononagintillionFiveHundredNinetyOneUnnonagintillionFourHundredEightySixNonagintillionFourHundredEightySevenNovemoctogintillionSixHundredFiftySixOctooctogintillionFiftyNineSeptenoctogintillionFiveHundredSixtyNineSexoctogintillionSevenHundredEighteenQuinoctogintillionNineHundredFourteenQuattuoroctogintillionSevenHundredFiftySixTreoctogintillionNineHundredFortySevenDuooctogintillionOneHundredSixtyFiveUnoctogintillionNineHundredFourteenOctogintillionSevenHundredSixtyFiveNovemseptuagintillionNineHundredElevenOctoseptuagintillionSevenHundredFiftySixSeptenseptuagintillionNineHundredFourteenSexseptuagintillionSevenHundredFiftySixQuinseptuagintillionNineHundredFourteenQuattuorseptuagintillionSevenHundredFiftyFiveTreseptuagintillionNineHundredFourteenDuoseptuagintillionSevenHundredFiftyFiveUnseptuagintillionEightHundredFourteenSeptuagintillionSevenHundredFiftySixNovemsexagintillionEightHundredEightyOneOctosexagintillionSevenHundredFortyEightSeptensexagintillionTwoHundredThirtyFiveSexsexagintillionOneHundredSeventyOneQuinsexagintillionFiveHundredEightySevenQuattuorsexagintillionOneHundredFiftyFiveTresexagintillionEightHundredSeventyOneDuosexagintillionFiveHundredFiftyEightUnsexagintillionOneHundredSeventyFiveSexagintillionFiveHundredEightyOneNovemquinquagintillionSevenHundredFiftySixOctoquinquagintillionEightHundredSeventeenSeptenquinquagintillionFiveHundredFiftyEightSexquinquagintillionOneHundredSeventyFiveQuinquinquagintillionEightHundredFortyFiveQuattuorquinquagintillionFiveHundredFiftySixTrequinquagintillionFiveHundredEightySevenDuoquinquagintillionOneHundredFifteenUnquinquagintillionSixHundredEightyOneQuinquagintillionSevenHundredFifteenNovemquadragintillionSixHundredEightyEightOctoquadragintillionOneHundredSeventyFourSeptenquadragintillionTwoHundredFiftyEightSexquadragintillionSixHundredSeventyOneQuinquadragintillionFourHundredFiftySixQuattuorquadragintillionEightHundredEightySevenTrequadragintillionOneHundredFortyFiveDuoquadragintillionSixHundredFiftyEightUnquadragintillionOneHundredFortySevenQuadragintillionFiveHundredSixtyFiveNovemtrigintillionEightHundredElevenOctotrigintillionSevenHundredFiftySixSeptentrigintillionFiveHundredEightySevenSextrigintillionOneHundredFortyFiveQuintrigintillionSixHundredFiftyNineQuattuortrigintillionOneHundredFiftySevenTretrigintillionFiveHundredSixtyFiveDuotrigintillionNineHundredFourteenUntrigintillionSevenHundredFiftySixTrigintillionFiveHundredNinetyFiveNovemvigintillionSevenHundredFifteenOctovigintillionEightHundredSixtyNineSeptenvigintillionOneHundredFiftySevenSexvigintillionNineHundredFifteenQuinvigintillionSevenHundredNinetyFiveQuattuorvigintillionSevenHundredNineteenTrevigintillionFiveHundredSeventeenDuovigintillionNineHundredFiftyOneUnvigintillionSevenHundredSixtyOneVigintillionFiveHundredSeventyNineNovemdecillionFiveHundredSeventeenOctodecillionNineHundredSeventyOneSeptendecillionFiveHundredNinetyOneSexdecillionFiveHundredSeventyNineQuindecillionNineHundredFiftySixQuattuordecillionOneHundredEightyFourTredecillionFiveHundredSixtyEightDuodecillionFourHundredFiftySixUndecillionEightHundredFortyEightDecillionFiveHundredSixtyFourNonillionFiveHundredSixtyEightOctillionFourHundredFiftySixSeptillionEightHundredFortyFiveSextillionSixHundredEightQuintillionFourHundredFiftyFiveQuadrillionEightHundredFiftyOneTrillionFourHundredSixtyFourBillionFiveHundredSixtyEightMillionFourHundredFiftySixThousandEightHundredFortyThird


Letter case 7 of 8
9 999 999 995 171 555 713 591 476 591 486 487 656 059 569 718 914 756 947 165 914 765 911 756 914 756 914 755 914 755 814 756 881 748 235 171 587 155 871 558 175 581 756 817 558 175 845 556 587 115 681 715 688 174 258 671 456 887 145 658 147 565 811 756 587 145 659 157 565 914 756 595 715 869 157 915 795 719 517 951 761 579 517 971 591 579 956 184 568 456 848 564 568 456 845 608 455 851 464 568 456 843rd written out in words in:
hyphen-case
punctuation - removed
spaces - replaced - by - hyphens:

nine-centillion-nine-hundred-ninety-nine-novemnonagintillion-nine-hundred-ninety-nine-octononagintillion-nine-hundred-ninety-five-septennonagintillion-one-hundred-seventy-one-sexnonagintillion-five-hundred-fifty-five-quinnonagintillion-seven-hundred-thirteen-quattuornonagintillion-five-hundred-ninety-one-trenonagintillion-four-hundred-seventy-six-duononagintillion-five-hundred-ninety-one-unnonagintillion-four-hundred-eighty-six-nonagintillion-four-hundred-eighty-seven-novemoctogintillion-six-hundred-fifty-six-octooctogintillion-fifty-nine-septenoctogintillion-five-hundred-sixty-nine-sexoctogintillion-seven-hundred-eighteen-quinoctogintillion-nine-hundred-fourteen-quattuoroctogintillion-seven-hundred-fifty-six-treoctogintillion-nine-hundred-forty-seven-duooctogintillion-one-hundred-sixty-five-unoctogintillion-nine-hundred-fourteen-octogintillion-seven-hundred-sixty-five-novemseptuagintillion-nine-hundred-eleven-octoseptuagintillion-seven-hundred-fifty-six-septenseptuagintillion-nine-hundred-fourteen-sexseptuagintillion-seven-hundred-fifty-six-quinseptuagintillion-nine-hundred-fourteen-quattuorseptuagintillion-seven-hundred-fifty-five-treseptuagintillion-nine-hundred-fourteen-duoseptuagintillion-seven-hundred-fifty-five-unseptuagintillion-eight-hundred-fourteen-septuagintillion-seven-hundred-fifty-six-novemsexagintillion-eight-hundred-eighty-one-octosexagintillion-seven-hundred-forty-eight-septensexagintillion-two-hundred-thirty-five-sexsexagintillion-one-hundred-seventy-one-quinsexagintillion-five-hundred-eighty-seven-quattuorsexagintillion-one-hundred-fifty-five-tresexagintillion-eight-hundred-seventy-one-duosexagintillion-five-hundred-fifty-eight-unsexagintillion-one-hundred-seventy-five-sexagintillion-five-hundred-eighty-one-novemquinquagintillion-seven-hundred-fifty-six-octoquinquagintillion-eight-hundred-seventeen-septenquinquagintillion-five-hundred-fifty-eight-sexquinquagintillion-one-hundred-seventy-five-quinquinquagintillion-eight-hundred-forty-five-quattuorquinquagintillion-five-hundred-fifty-six-trequinquagintillion-five-hundred-eighty-seven-duoquinquagintillion-one-hundred-fifteen-unquinquagintillion-six-hundred-eighty-one-quinquagintillion-seven-hundred-fifteen-novemquadragintillion-six-hundred-eighty-eight-octoquadragintillion-one-hundred-seventy-four-septenquadragintillion-two-hundred-fifty-eight-sexquadragintillion-six-hundred-seventy-one-quinquadragintillion-four-hundred-fifty-six-quattuorquadragintillion-eight-hundred-eighty-seven-trequadragintillion-one-hundred-forty-five-duoquadragintillion-six-hundred-fifty-eight-unquadragintillion-one-hundred-forty-seven-quadragintillion-five-hundred-sixty-five-novemtrigintillion-eight-hundred-eleven-octotrigintillion-seven-hundred-fifty-six-septentrigintillion-five-hundred-eighty-seven-sextrigintillion-one-hundred-forty-five-quintrigintillion-six-hundred-fifty-nine-quattuortrigintillion-one-hundred-fifty-seven-tretrigintillion-five-hundred-sixty-five-duotrigintillion-nine-hundred-fourteen-untrigintillion-seven-hundred-fifty-six-trigintillion-five-hundred-ninety-five-novemvigintillion-seven-hundred-fifteen-octovigintillion-eight-hundred-sixty-nine-septenvigintillion-one-hundred-fifty-seven-sexvigintillion-nine-hundred-fifteen-quinvigintillion-seven-hundred-ninety-five-quattuorvigintillion-seven-hundred-nineteen-trevigintillion-five-hundred-seventeen-duovigintillion-nine-hundred-fifty-one-unvigintillion-seven-hundred-sixty-one-vigintillion-five-hundred-seventy-nine-novemdecillion-five-hundred-seventeen-octodecillion-nine-hundred-seventy-one-septendecillion-five-hundred-ninety-one-sexdecillion-five-hundred-seventy-nine-quindecillion-nine-hundred-fifty-six-quattuordecillion-one-hundred-eighty-four-tredecillion-five-hundred-sixty-eight-duodecillion-four-hundred-fifty-six-undecillion-eight-hundred-forty-eight-decillion-five-hundred-sixty-four-nonillion-five-hundred-sixty-eight-octillion-four-hundred-fifty-six-septillion-eight-hundred-forty-five-sextillion-six-hundred-eight-quintillion-four-hundred-fifty-five-quadrillion-eight-hundred-fifty-one-trillion-four-hundred-sixty-four-billion-five-hundred-sixty-eight-million-four-hundred-fifty-six-thousand-eight-hundred-forty-third

Letter case 8 of 8
9 999 999 995 171 555 713 591 476 591 486 487 656 059 569 718 914 756 947 165 914 765 911 756 914 756 914 755 914 755 814 756 881 748 235 171 587 155 871 558 175 581 756 817 558 175 845 556 587 115 681 715 688 174 258 671 456 887 145 658 147 565 811 756 587 145 659 157 565 914 756 595 715 869 157 915 795 719 517 951 761 579 517 971 591 579 956 184 568 456 848 564 568 456 845 608 455 851 464 568 456 843rd SPELLED OUT IN:
snake_case
punctuation _ removed
spaces _ replaced _ by _ underscores:

nine_centillion_nine_hundred_ninety_nine_novemnonagintillion_nine_hundred_ninety_nine_octononagintillion_nine_hundred_ninety_five_septennonagintillion_one_hundred_seventy_one_sexnonagintillion_five_hundred_fifty_five_quinnonagintillion_seven_hundred_thirteen_quattuornonagintillion_five_hundred_ninety_one_trenonagintillion_four_hundred_seventy_six_duononagintillion_five_hundred_ninety_one_unnonagintillion_four_hundred_eighty_six_nonagintillion_four_hundred_eighty_seven_novemoctogintillion_six_hundred_fifty_six_octooctogintillion_fifty_nine_septenoctogintillion_five_hundred_sixty_nine_sexoctogintillion_seven_hundred_eighteen_quinoctogintillion_nine_hundred_fourteen_quattuoroctogintillion_seven_hundred_fifty_six_treoctogintillion_nine_hundred_forty_seven_duooctogintillion_one_hundred_sixty_five_unoctogintillion_nine_hundred_fourteen_octogintillion_seven_hundred_sixty_five_novemseptuagintillion_nine_hundred_eleven_octoseptuagintillion_seven_hundred_fifty_six_septenseptuagintillion_nine_hundred_fourteen_sexseptuagintillion_seven_hundred_fifty_six_quinseptuagintillion_nine_hundred_fourteen_quattuorseptuagintillion_seven_hundred_fifty_five_treseptuagintillion_nine_hundred_fourteen_duoseptuagintillion_seven_hundred_fifty_five_unseptuagintillion_eight_hundred_fourteen_septuagintillion_seven_hundred_fifty_six_novemsexagintillion_eight_hundred_eighty_one_octosexagintillion_seven_hundred_forty_eight_septensexagintillion_two_hundred_thirty_five_sexsexagintillion_one_hundred_seventy_one_quinsexagintillion_five_hundred_eighty_seven_quattuorsexagintillion_one_hundred_fifty_five_tresexagintillion_eight_hundred_seventy_one_duosexagintillion_five_hundred_fifty_eight_unsexagintillion_one_hundred_seventy_five_sexagintillion_five_hundred_eighty_one_novemquinquagintillion_seven_hundred_fifty_six_octoquinquagintillion_eight_hundred_seventeen_septenquinquagintillion_five_hundred_fifty_eight_sexquinquagintillion_one_hundred_seventy_five_quinquinquagintillion_eight_hundred_forty_five_quattuorquinquagintillion_five_hundred_fifty_six_trequinquagintillion_five_hundred_eighty_seven_duoquinquagintillion_one_hundred_fifteen_unquinquagintillion_six_hundred_eighty_one_quinquagintillion_seven_hundred_fifteen_novemquadragintillion_six_hundred_eighty_eight_octoquadragintillion_one_hundred_seventy_four_septenquadragintillion_two_hundred_fifty_eight_sexquadragintillion_six_hundred_seventy_one_quinquadragintillion_four_hundred_fifty_six_quattuorquadragintillion_eight_hundred_eighty_seven_trequadragintillion_one_hundred_forty_five_duoquadragintillion_six_hundred_fifty_eight_unquadragintillion_one_hundred_forty_seven_quadragintillion_five_hundred_sixty_five_novemtrigintillion_eight_hundred_eleven_octotrigintillion_seven_hundred_fifty_six_septentrigintillion_five_hundred_eighty_seven_sextrigintillion_one_hundred_forty_five_quintrigintillion_six_hundred_fifty_nine_quattuortrigintillion_one_hundred_fifty_seven_tretrigintillion_five_hundred_sixty_five_duotrigintillion_nine_hundred_fourteen_untrigintillion_seven_hundred_fifty_six_trigintillion_five_hundred_ninety_five_novemvigintillion_seven_hundred_fifteen_octovigintillion_eight_hundred_sixty_nine_septenvigintillion_one_hundred_fifty_seven_sexvigintillion_nine_hundred_fifteen_quinvigintillion_seven_hundred_ninety_five_quattuorvigintillion_seven_hundred_nineteen_trevigintillion_five_hundred_seventeen_duovigintillion_nine_hundred_fifty_one_unvigintillion_seven_hundred_sixty_one_vigintillion_five_hundred_seventy_nine_novemdecillion_five_hundred_seventeen_octodecillion_nine_hundred_seventy_one_septendecillion_five_hundred_ninety_one_sexdecillion_five_hundred_seventy_nine_quindecillion_nine_hundred_fifty_six_quattuordecillion_one_hundred_eighty_four_tredecillion_five_hundred_sixty_eight_duodecillion_four_hundred_fifty_six_undecillion_eight_hundred_forty_eight_decillion_five_hundred_sixty_four_nonillion_five_hundred_sixty_eight_octillion_four_hundred_fifty_six_septillion_eight_hundred_forty_five_sextillion_six_hundred_eight_quintillion_four_hundred_fifty_five_quadrillion_eight_hundred_fifty_one_trillion_four_hundred_sixty_four_billion_five_hundred_sixty_eight_million_four_hundred_fifty_six_thousand_eight_hundred_forty_third



Notes on the Letter Cases used to write out in words the number above:

  • 1: Lowercase: only lowercase letters are used. Example: 'seventy-six and two tenths'.
  • 2: Uppercase: only uppercase letters are used. Example: 'SEVENTY-SIX AND TWO TENTHS'.
  • 3. Title Case: the first letters of the words are capitalized, except for certain short words, such as articles, conjunctions and short prepositions, 'a', 'an', 'the', 'and', 'but', 'for', 'at', 'by', 'to', 'or', 'in', etc. Example: 'Seventy-Six and Two Tenths'.
  • 4. Sentence case: only the first letter of the first word at the beginning of the sentence is capitalized. Example: 'Seventy-six and two tenths'.
  • 5. Start Case: the first letter of each word is capitalized without any exception. Example: 'Seventy-Six And Two Tenths'.
  • 6. Camel Case: text has no spaces nor punctuation and the first letter of each word is capitalized except for the very first letter in the series. Example: 'seventySixAndTwoTenths'.
  • 7. Hyphen Case: text has no spaces nor punctuation and the words are delimited by hyphen. Example: 'seventy-six-and-two-tenths'. Hyphen Case can be lowercase or uppercase.
  • 8. Snake Case: text has no spaces nor punctuation and the words are delimited by underscore. Example: 'seventy_six_and_two_tenths'. Snake Case can be lowercase or uppercase.

General Notes on Writing Out Numbers:

  • 1: It's correct to hyphenate all compound numbers from twenty-one (21) through ninety-nine (99). The hyphen is the minus sign, as in 'thirty-four' (34).
  • 2: In American English, unlike British English, when writing out natural numbers of three or more digits, the word 'and' is not used after 'hundred' or 'thousand': so it is 'one thousand two hundred thirty-four' and not 'one thousand two hundred and thirty-four'.
  • 3. Use commas when writing in digits numbers above 999: 1,234; 43,290, 1,000,000 etc.


How to convert ordinal numerals to words in (US) American English, how to write them out using letters instead of numerals

How to write out ordinal numbers (those denoting order) in words?

Most ordinal numbers end in "th", so just add "th" to the end of the cardinal number (those denoting quantity, ex: 1 one, 2 two, 3 three, 4 four, ... etc.):

  • cardinal: 4 = four → ordinal: 4th = fourth
  • cardinal: 7 = seven → ordinal: 7th = seventh
  • cardinal: 10 = ten → ordinal: 10th = tenth
  • cardinal: 19 = nineteen → ordinal: 19th = nineteenth
  • cardinal: 100 = one hundred → ordinal: 100th = (one) hundredth
  • cardinal: 1,000 = one thousand → ordinal: 1,000th = (one) thousandth

Exceptions:

  • cardinal: 1 = one → ordinal: first = 1st
  • cardinal: 2 = two → ordinal: second = 2nd
  • cardinal: 3 = three → ordinal: third = 3rd
  • cardinal: 5 = five → ordinal: fifth = 5th
  • cardinal: 8 = eight → ordinal: eighth = 8th
  • cardinal: 9 = nine → ordinal: ninth = 9th
  • cardinal: 12 = twelve → ordinal: twelfth = 12th
  • cardinal: 20 = twenty → ordinal: twentieth = 20th
  • cardinal: 30 = thirty → ordinal: thirtieth = 30th
  • cardinal: 40 = forty → ordinal: fortieth = 40th
  • cardinal: 50 = fifty → ordinal: fiftieth = 50th
  • cardinal: 60 = sixty → ordinal: sixtieth = 60th
  • cardinal: 70 = seventy → ordinal: seventieth = 70th
  • cardinal: 80 = eighty → ordinal: eightieth = 80th
  • cardinal: 90 = ninety → ordinal: ninetieth = 90th

Here there are a couple of the main ordinal numbers, from 1st up to 19th, you can find a longer list in the full article:

  • cardinal: 1 = one; → ordinal: 1st = first;
  • cardinal: 2 = two; → ordinal: 2nd, second;
  • cardinal: 3 = three; → ordinal: 3rd, third;
  • cardinal: 4 = four; → ordinal: 4th, fourth;
  • cardinal: 5 = five; → ordinal: 5th, fifth;
  • cardinal: 6 = six; → ordinal: 6th, sixth;
  • cardinal: 7 = seven; → ordinal: 7th, seventh;
  • cardinal: 8 = eight; → ordinal: 8th, eighth;
  • cardinal: 9 = nine; → ordinal: 9th, ninth;
  • cardinal: 10 = ten; → ordinal: 10th, tenth;
  • cardinal: 11 = eleven; → ordinal: 11th, eleventh;
  • cardinal: 12 = twelve; → ordinal: 12th, twelfth;
  • cardinal: 13 = thirteen; → ordinal: thirteenth;
  • cardinal: 14 = fourteen; → ordinal: 14th, fourteenth;
  • cardinal: 15 = fifteen; → ordinal: 15th, fifteenth;
  • cardinal: 16 = sixteen; → ordinal: 16th, sixteenth;
  • cardinal: 17 = seventeen; → ordinal: 17th, seventeenth;
  • cardinal: 18 = eighteen; → ordinal: 18th, eighteenth;
  • cardinal: 19 = nineteen; → ordinal: 19th, nineteenth;

» Full article: how to write out ordinal numbers in words in (US) American English, using letters instead of numerals