63561164 has 12 divisors (see below), whose sum is σ = 117775224. Its totient is φ = 29911104.

The previous prime is 63561163. The next prime is 63561187. The reversal of 63561164 is 46116536.

It is a self number, because there is not a number n which added to its sum of digits gives 63561164.

It is not an unprimeable number, because it can be changed into a prime (63561161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467294 + ... + 467429.

It is an arithmetic number, because the mean of its divisors is an integer number (9814602).

Almost surely, 2^63561164 is an apocalyptic number.

It is an amenable number.

63561164 is a deficient number, since it is larger than the sum of its proper divisors (54214060).

63561164 is a wasteful number, since it uses less digits than its factorization.

63561164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934744 (or 934742 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 63561164 is about 7972.5255722387. The cubic root of 63561164 is about 399.0836607422.

The spelling of 63561164 in words is "sixty-three million, five hundred sixty-one thousand, one hundred sixty-four".