660056610556 has 12 divisors (see below), whose sum is σ = 1320113221168. Its totient is φ = 282881404512.

The previous prime is 660056610539. The next prime is 660056610557. The reversal of 660056610556 is 655016650066.

660056610556 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660056610557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11786725161 + ... + 11786725216.

Almost surely, 2^660056610556 is an apocalyptic number.

It is an amenable number.

660056610556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

660056610556 is a wasteful number, since it uses less digits than its factorization.

660056610556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23573450388 (or 23573450386 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 660056610556 in words is "six hundred sixty billion, fifty-six million, six hundred ten thousand, five hundred fifty-six".