63541117974816 has 192 divisors, whose sum is σ = 196243172496000. Its totient is φ = 19933122428928.

The previous prime is 63541117974781. The next prime is 63541117974869. The reversal of 63541117974816 is 61847971114536.

63541117974816 is a `hidden beast` number, since 6 + 3 + 5 + 411 + 1 + 79 + 74 + 81 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229714291 + ... + 229990733.

It is an arithmetic number, because the mean of its divisors is an integer number (1022099856750).

Almost surely, 2^{63541117974816} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63541117974816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98121586248000).

63541117974816 is an abundant number, since it is smaller than the sum of its proper divisors (132702054521184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63541117974816 is a wasteful number, since it uses less digits than its factorization.

63541117974816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292128 (or 292114 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The spelling of 63541117974816 in words is "sixty-three trillion, five hundred forty-one billion, one hundred seventeen million, nine hundred seventy-four thousand, eight hundred sixteen".