668792576 has 18 divisors (see below), whose sum is σ = 1334973192. Its totient is φ = 334396160.

The previous prime is 668792567. The next prime is 668792581. The reversal of 668792576 is 675297866.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1305980 + ... + 1306491.

Almost surely, 2^668792576 is an apocalyptic number.

It is an amenable number.

668792576 is a deficient number, since it is larger than the sum of its proper divisors (666180616).

668792576 is an equidigital number, since it uses as much as digits as its factorization.

668792576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612487 (or 2612473 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 56.

The square root of 668792576 is about 25861.0242643249. The cubic root of 668792576 is about 874.5080558783.

The spelling of 668792576 in words is "six hundred sixty-eight million, seven hundred ninety-two thousand, five hundred seventy-six".