667037400404 has 24 divisors (see below), whose sum is σ = 1174474295400. Its totient is φ = 331478438400.

The previous prime is 667037400389. The next prime is 667037400427. The reversal of 667037400404 is 404004730766.

It can be written as a sum of positive squares in 4 ways, for example, as 231503397904 + 435534002500 = 481148^2 + 659950^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118697 + ... + 1161104.

It is an arithmetic number, because the mean of its divisors is an integer number (48936428975).

Almost surely, 2^667037400404 is an apocalyptic number.

It is an amenable number.

667037400404 is a deficient number, since it is larger than the sum of its proper divisors (507436894996).

667037400404 is a wasteful number, since it uses less digits than its factorization.

667037400404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280603 (or 1280601 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 41.

The spelling of 667037400404 in words is "six hundred sixty-seven billion, thirty-seven million, four hundred thousand, four hundred four".