166530604 has 12 divisors (see below), whose sum is σ = 291537064. Its totient is φ = 83234304.

The previous prime is 166530547. The next prime is 166530631. The reversal of 166530604 is 406035661.

166530604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 7807 + ... + 19849.

Almost surely, 2^166530604 is an apocalyptic number.

It is an amenable number.

166530604 is a deficient number, since it is larger than the sum of its proper divisors (125006460).

166530604 is a wasteful number, since it uses less digits than its factorization.

166530604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15504 (or 15502 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 166530604 is about 12904.6737269874. The cubic root of 166530604 is about 550.1714110359.

The spelling of 166530604 in words is "one hundred sixty-six million, five hundred thirty thousand, six hundred four".