16320664 has 16 divisors (see below), whose sum is σ = 31059000. Its totient is φ = 8038272.

The previous prime is 16320653. The next prime is 16320719. The reversal of 16320664 is 46602361.

It is a congruent number.

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, 14689 + ... + 15760.

Almost surely, 2^16320664 is an apocalyptic number.

It is an amenable number.

16320664 is a deficient number, since it is larger than the sum of its proper divisors (14738336).

16320664 is a wasteful number, since it uses less digits than its factorization.

16320664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30522 (or 30518 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 16320664 is about 4039.8841567550. The cubic root of 16320664 is about 253.6564682343.

The spelling of 16320664 in words is "sixteen million, three hundred twenty thousand, six hundred sixty-four".