666670364 has 12 divisors (see below), whose sum is σ = 1217398224. Its totient is φ = 318842304.

The previous prime is 666670349. The next prime is 666670421. The reversal of 666670364 is 463076666.

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, 3623117 + ... + 3623300.

It is an arithmetic number, because the mean of its divisors is an integer number (101449852).

Almost surely, 2^666670364 is an apocalyptic number.

It is an amenable number.

666670364 is a deficient number, since it is larger than the sum of its proper divisors (550727860).

666670364 is a wasteful number, since it uses less digits than its factorization.

666670364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7246444 (or 7246442 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 44.

The square root of 666670364 is about 25819.9605731690. The cubic root of 666670364 is about 873.5820796924.

The spelling of 666670364 in words is "six hundred sixty-six million, six hundred seventy thousand, three hundred sixty-four".