63660435560 has 32 divisors (see below), whose sum is σ = 150774717600. Its totient is φ = 24123954240.

The previous prime is 63660435533. The next prime is 63660435599. The reversal of 63660435560 is 6553406636.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41881106 + ... + 41882625.

It is an arithmetic number, because the mean of its divisors is an integer number (4711709925).

Almost surely, 2^63660435560 is an apocalyptic number.

It is an amenable number.

63660435560 is an abundant number, since it is smaller than the sum of its proper divisors (87114282040).

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

63660435560 is a wasteful number, since it uses less digits than its factorization.

63660435560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83763761 (or 83763757 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 44.

The spelling of 63660435560 in words is "sixty-three billion, six hundred sixty million, four hundred thirty-five thousand, five hundred sixty".