sex·​de·​cil·​lion ˌseks-di-ˈsil-yən How to pronounce sexdecillion (audio)
often attributive
US : a number equal to 1 followed by 51 zeros see Table of Numbers
also, British : a number equal to 1 followed by 96 zeros see Table of Numbers

Examples of sexdecillion in a Sentence

Recent Examples on the Web Eventually, this creature was proved to live — or, technically, to act — in 196,883 dimensions, and to possess 808 sexdecillion or so symmetries. Siobhan Roberts, New York Times, 3 Mar. 2020

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'sexdecillion.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


Latin sedecim, sexdecim sixteen (from sex six + decem ten) + English -illion (as in million) — more at ten

First Known Use

1848, in the meaning defined above

Time Traveler
The first known use of sexdecillion was in 1848

Dictionary Entries Near sexdecillion

Cite this Entry

“Sexdecillion.” Dictionary, Merriam-Webster, Accessed 9 Dec. 2023.

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