sextillion

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sextillion

  • /sɛksˈtɪljən/

Rhymes with -ɪljən

Where it comes from

From Classical Latin sextus (“sixth”) + -illion; originally the sixth power of a million, 10³⁶. Compare slightly earlier quintillion, Middle French sixlion (1484) and French sextillion (1765). First attested in 1689 in John Locke’s An Essay Concerning Human Understanding (see the quotation).

number sextillions

  1. Australia, UK, US A trillion billion: 1 followed by 21 zeros, 10²¹.

    Similar: 1021

  2. Australia, UK, dated A million quintillion: 1 followed by 36 zeros, 10³⁶. [W]e take now to name them by Millions of Millions of Millions, it is hard to go beyond eighteen, or at moſt four and twenty decimal Progreſſions, without confuſion. But to ſhew how much diſtinct Names conduce to our well reckoning, or having uſeful Ideas of Numbers, let us ſet all these following F

Similar: 1036

Thesaurus

number

Similar: 1036

Translations

Every language

num a trillion billion, 1021 — see also trilliard

Españolmil trillones, sextillón
한국어십해 siphae
日本語十垓 jū-gai
Portuguêssextilhão
Françaistrilliard
DeutschTrilliarde
Italianotriliardo
Русскийсекстиллио́н sekstillión

num a million quintillion, 1036 — see also undecillion

Españolsextillón
日本語一澗 ikkan
Françaisfrantic, sextillion
DeutschSextillion

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Cite this
MLA

"sextillion." Wiktionary, via Micwyn, micwyn.com/word/sextillion. Accessed 6 Nov. 2026.

APA

sextillion. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/sextillion

Chicago

"sextillion." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/sextillion.

BibTeX
@misc{sextillion_2026,
  title = {sextillion},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/sextillion},
  urldate = {2026-11-06}
}