63660615108 has 24 divisors (see below), whose sum is σ = 148638500640. Its totient is φ = 21206338560.

The previous prime is 63660615107. The next prime is 63660615157. The reversal of 63660615108 is 80151606636.

It is a self number, because there is not a number n which added to its sum of digits gives 63660615108.

It is not an unprimeable number, because it can be changed into a prime (63660615107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1714173 + ... + 1750916.

It is an arithmetic number, because the mean of its divisors is an integer number (6193270860).

Almost surely, 2^63660615108 is an apocalyptic number.

It is an amenable number.

63660615108 is an abundant number, since it is smaller than the sum of its proper divisors (84977885532).

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

63660615108 is a wasteful number, since it uses less digits than its factorization.

63660615108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3466627 (or 3466625 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 63660615108 in words is "sixty-three billion, six hundred sixty million, six hundred fifteen thousand, one hundred eight".