163664524 has 12 divisors (see below), whose sum is σ = 286503448. Its totient is φ = 81806400.

The previous prime is 163664513. The next prime is 163664549. The reversal of 163664524 is 425466361.

It is a super-2 number, since 2×163664524² = 53572152832293152, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18379 + ... + 25789.

Almost surely, 2^163664524 is an apocalyptic number.

It is an amenable number.

163664524 is a deficient number, since it is larger than the sum of its proper divisors (122838924).

163664524 is a wasteful number, since it uses less digits than its factorization.

163664524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12936 (or 12934 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The square root of 163664524 is about 12793.1436324306. The cubic root of 163664524 is about 546.9968817605.

The spelling of 163664524 in words is "one hundred sixty-three million, six hundred sixty-four thousand, five hundred twenty-four".