16664524 has 12 divisors (see below), whose sum is σ = 29292984. Its totient is φ = 8295104.

The previous prime is 16664519. The next prime is 16664551. The reversal of 16664524 is 42546661.

It is a self number, because there is not a number n which added to its sum of digits gives 16664524.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8269 + ... + 10084.

It is an arithmetic number, because the mean of its divisors is an integer number (2441082).

Almost surely, 2^16664524 is an apocalyptic number.

It is an amenable number.

16664524 is a deficient number, since it is larger than the sum of its proper divisors (12628460).

16664524 is a wasteful number, since it uses less digits than its factorization.

16664524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18584 (or 18582 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 16664524 is about 4082.2204742027. The cubic root of 16664524 is about 255.4255306909.

The spelling of 16664524 in words is "sixteen million, six hundred sixty-four thousand, five hundred twenty-four".