166661932 has 12 divisors (see below), whose sum is σ = 291790576. Its totient is φ = 83293200.

The previous prime is 166661899. The next prime is 166661941. The reversal of 166661932 is 239166661.

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, 2038 + ... + 18370.

Almost surely, 2^166661932 is an apocalyptic number.

It is an amenable number.

166661932 is a deficient number, since it is larger than the sum of its proper divisors (125128644).

166661932 is a wasteful number, since it uses less digits than its factorization.

166661932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18888 (or 18886 counting only the distinct ones).

The product of its digits is 69984, while the sum is 40.

The square root of 166661932 is about 12909.7611132042. The cubic root of 166661932 is about 550.3159969248.

The spelling of 166661932 in words is "one hundred sixty-six million, six hundred sixty-one thousand, nine hundred thirty-two".