125666164 has 48 divisors (see below), whose sum is σ = 246960000. Its totient is φ = 55552896.

The previous prime is 125666143. The next prime is 125666173. The reversal of 125666164 is 461666521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251587 + ... + 252085.

It is an arithmetic number, because the mean of its divisors is an integer number (5145000).

Almost surely, 2^125666164 is an apocalyptic number.

It is an amenable number.

125666164 is a deficient number, since it is larger than the sum of its proper divisors (121293836).

125666164 is a wasteful number, since it uses less digits than its factorization.

125666164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712 (or 710 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 125666164 is about 11210.0920602821. The cubic root of 125666164 is about 500.8866454570.

The spelling of 125666164 in words is "one hundred twenty-five million, six hundred sixty-six thousand, one hundred sixty-four".