666370502 has 12 divisors (see below), whose sum is σ = 1162748700. Its totient is φ = 285587316.

The previous prime is 666370493. The next prime is 666370553. The reversal of 666370502 is 205073666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3399752 + ... + 3399947.

It is an arithmetic number, because the mean of its divisors is an integer number (96895725).

Almost surely, 2^666370502 is an apocalyptic number.

666370502 is a deficient number, since it is larger than the sum of its proper divisors (496378198).

666370502 is a wasteful number, since it uses less digits than its factorization.

666370502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6799715 (or 6799708 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 666370502 is about 25814.1531335041. The cubic root of 666370502 is about 873.4510837418.

The spelling of 666370502 in words is "six hundred sixty-six million, three hundred seventy thousand, five hundred two".