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octodecillion

oc·to·de·cil·lion [ òktō di síllyən ] (plural oc·to·de·cil·lions)


noun 
Definition:
 
1. 1 followed by 57 zeros: the number equal to 1057, written as 1 followed by 57 zeros

2. U.K. 1 followed by 108 zeros: the number equal to 10108, written as 1 followed by 108 zeros

[Mid-20th century. < Latin octodecim "eighteen" + million]
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