163907907264 has 56 divisors (see below), whose sum is σ = 481858899120. Its totient is φ = 54635968512.

The previous prime is 163907907223. The next prime is 163907907277. The reversal of 163907907264 is 462709709361.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 163907907264.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47425329 + ... + 47428784.

Almost surely, 2^163907907264 is an apocalyptic number.

It is an amenable number.

163907907264 is an abundant number, since it is smaller than the sum of its proper divisors (317950991856).

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

163907907264 is an equidigital number, since it uses as much as digits as its factorization.

163907907264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94854134 (or 94854118 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The spelling of 163907907264 in words is "one hundred sixty-three billion, nine hundred seven million, nine hundred seven thousand, two hundred sixty-four".