163680264 has 80 divisors (see below), whose sum is σ = 500155920. Its totient is φ = 49597920.

The previous prime is 163680239. The next prime is 163680277. The reversal of 163680264 is 462086361.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4354 + ... + 18609.

It is an arithmetic number, because the mean of its divisors is an integer number (6251949).

Almost surely, 2^163680264 is an apocalyptic number.

It is an amenable number.

163680264 is an abundant number, since it is smaller than the sum of its proper divisors (336475656).

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

163680264 is a wasteful number, since it uses less digits than its factorization.

163680264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22992 (or 22979 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 163680264 is about 12793.7587909105. The cubic root of 163680264 is about 547.0144165215.

The spelling of 163680264 in words is "one hundred sixty-three million, six hundred eighty thousand, two hundred sixty-four".