668737376048 has 60 divisors (see below), whose sum is σ = 1507980092472. Its totient is φ = 286456826880.

The previous prime is 668737376017. The next prime is 668737376063. The reversal of 668737376048 is 840673737866.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1343168 + ... + 1772448.

Almost surely, 2^668737376048 is an apocalyptic number.

It is an amenable number.

668737376048 is an abundant number, since it is smaller than the sum of its proper divisors (839242716424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

668737376048 is a wasteful number, since it uses less digits than its factorization.

668737376048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431290 (or 431277 counting only the distinct ones).

The product of its (nonzero) digits is 170698752, while the sum is 65.

The spelling of 668737376048 in words is "six hundred sixty-eight billion, seven hundred thirty-seven million, three hundred seventy-six thousand, forty-eight".