sexdecillion

noun, often attributive
sex·​de·​cil·​lion | \ˌseks-di-ˈsil-yən \

Definition of sexdecillion 

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

First Known Use of sexdecillion

1848, in the meaning defined above

History and Etymology for sexdecillion

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

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The first known use of sexdecillion was in 1848

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