667370376732644 has 96 divisors (see below), whose sum is σ = 1289067052605696. Its totient is φ = 300435515043840.

The previous prime is 667370376732503. The next prime is 667370376732727. The reversal of 667370376732644 is 446237673073766.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2899767944 + ... + 2899998080.

It is an arithmetic number, because the mean of its divisors is an integer number (13427781797976).

Almost surely, 2^{667370376732644} is an apocalyptic number.

It is an amenable number.

667370376732644 is a deficient number, since it is larger than the sum of its proper divisors (621696675873052).

667370376732644 is a wasteful number, since it uses less digits than its factorization.

667370376732644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238405 (or 238403 counting only the distinct ones).

The product of its (nonzero) digits is 2688505344, while the sum is 71.

The spelling of 667370376732644 in words is "six hundred sixty-seven trillion, three hundred seventy billion, three hundred seventy-six million, seven hundred thirty-two thousand, six hundred forty-four".