63557510660 has 48 divisors (see below), whose sum is σ = 160566349440. Its totient is φ = 20644243200.

The previous prime is 63557510657. The next prime is 63557510699. The reversal of 63557510660 is 6601575536.

It is a super-2 number, since 2×63557510660² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11944241 + ... + 11949560.

It is an arithmetic number, because the mean of its divisors is an integer number (3345132280).

Almost surely, 2^63557510660 is an apocalyptic number.

It is an amenable number.

63557510660 is an abundant number, since it is smaller than the sum of its proper divisors (97008838780).

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

63557510660 is a wasteful number, since it uses less digits than its factorization.

63557510660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23893836 (or 23893834 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 44.

The spelling of 63557510660 in words is "sixty-three billion, five hundred fifty-seven million, five hundred ten thousand, six hundred sixty".