166675664 has 20 divisors (see below), whose sum is σ = 336975456. Its totient is φ = 79714272.

The previous prime is 166675643. The next prime is 166675679. The reversal of 166675664 is 466576661.

166675664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 226094 + ... + 226829.

Almost surely, 2^166675664 is an apocalyptic number.

It is an amenable number.

166675664 is an abundant number, since it is smaller than the sum of its proper divisors (170299792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166675664 is a wasteful number, since it uses less digits than its factorization.

166675664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452954 (or 452948 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 47.

The square root of 166675664 is about 12910.2929478769. The cubic root of 166675664 is about 550.3311108176.

The spelling of 166675664 in words is "one hundred sixty-six million, six hundred seventy-five thousand, six hundred sixty-four".