16664056 has 16 divisors (see below), whose sum is σ = 31348440. Its totient is φ = 8304480.

The previous prime is 16664027. The next prime is 16664057. The reversal of 16664056 is 65046661.

It is a super-2 number, since 2×16664056² = 555381524742272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16664057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750 + ... + 5821.

Almost surely, 2^16664056 is an apocalyptic number.

It is an amenable number.

16664056 is a deficient number, since it is larger than the sum of its proper divisors (14684384).

16664056 is a wasteful number, since it uses less digits than its factorization.

16664056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6894 (or 6890 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 16664056 is about 4082.1631520555. The cubic root of 16664056 is about 255.4231395781.

The spelling of 16664056 in words is "sixteen million, six hundred sixty-four thousand, fifty-six".