septendecillion

noun, often attributive
sep·ten·de·cil·lion | \(ˌ)sep-ˌten-di-ˈsil-yən \

Definition of septendecillion 

US : a number equal to 1 followed by 54 zeros — see Table of Numbers also, British : a number equal to 1 followed by 102 zeros — see Table of Numbers

First Known Use of septendecillion

1848, in the meaning defined above

History and Etymology for septendecillion

Latin septendecim seventeen (from septem seven + decem ten) + English -illion (as in million) — more at ten

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The first known use of septendecillion was in 1848

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