666462164 has 12 divisors (see below), whose sum is σ = 1227693600. Its totient is φ = 315692568.

The previous prime is 666462157. The next prime is 666462179. The reversal of 666462164 is 461264666.

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, 4384544 + ... + 4384695.

It is an arithmetic number, because the mean of its divisors is an integer number (102307800).

Almost surely, 2^666462164 is an apocalyptic number.

It is an amenable number.

666462164 is a deficient number, since it is larger than the sum of its proper divisors (561231436).

666462164 is a wasteful number, since it uses less digits than its factorization.

666462164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8769262 (or 8769260 counting only the distinct ones).

The product of its digits is 248832, while the sum is 41.

The square root of 666462164 is about 25815.9284938582. The cubic root of 666462164 is about 873.4911308339.

The spelling of 666462164 in words is "six hundred sixty-six million, four hundred sixty-two thousand, one hundred sixty-four".