166090664 has 16 divisors (see below), whose sum is σ = 316699200. Its totient is φ = 81637552.

The previous prime is 166090657. The next prime is 166090681. The reversal of 166090664 is 466090661.

166090664 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×166090664² = 55172217335921792, which contains 22 as substring.

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, 175472 + ... + 176415.

It is an arithmetic number, because the mean of its divisors is an integer number (19793700).

Almost surely, 2^166090664 is an apocalyptic number.

It is an amenable number.

166090664 is a deficient number, since it is larger than the sum of its proper divisors (150608536).

166090664 is a wasteful number, since it uses less digits than its factorization.

166090664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351952 (or 351948 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 166090664 is about 12887.6166920032. The cubic root of 166090664 is about 549.6865034365.

The spelling of 166090664 in words is "one hundred sixty-six million, ninety thousand, six hundred sixty-four".