63663611166500 has 48 divisors (see below), whose sum is σ = 139063590906240. Its totient is φ = 25461366789600.

The previous prime is 63663611166473. The next prime is 63663611166557. The reversal of 63663611166500 is 566111636636.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7067570 + ... + 13314569.

It is an arithmetic number, because the mean of its divisors is an integer number (2897158143880).

Almost surely, 2^{63663611166500} is an apocalyptic number.

It is an amenable number.

63663611166500 is an abundant number, since it is smaller than the sum of its proper divisors (75399979739740).

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

63663611166500 is a wasteful number, since it uses less digits than its factorization.

63663611166500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20388405 (or 20388393 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 50.

The spelling of 63663611166500 in words is "sixty-three trillion, six hundred sixty-three billion, six hundred eleven million, one hundred sixty-six thousand, five hundred".