660748641088788 has 72 divisors (see below), whose sum is σ = 1908832575645632. Its totient is φ = 188785012701312.

The previous prime is 660748641088759. The next prime is 660748641088819. The reversal of 660748641088788 is 887880146847066.

660748641088788 is a `hidden beast` number, since 6 + 6 + 0 + 7 + 48 + 6 + 410 + 8 + 87 + 88 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 180247056 + ... + 183876312.

Almost surely, 2^{660748641088788} is an apocalyptic number.

It is an amenable number.

660748641088788 is an abundant number, since it is smaller than the sum of its proper divisors (1248083934556844).

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

660748641088788 is a wasteful number, since it uses less digits than its factorization.

660748641088788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4351741 (or 4351736 counting only the distinct ones).

The product of its (nonzero) digits is 5549064192, while the sum is 81.

The spelling of 660748641088788 in words is "six hundred sixty trillion, seven hundred forty-eight billion, six hundred forty-one million, eighty-eight thousand, seven hundred eighty-eight".