57039004656 has 80 divisors (see below), whose sum is σ = 173353860000. Its totient is φ = 17894587392.

The previous prime is 57039004651. The next prime is 57039004657. The reversal of 57039004656 is 65640093075.

57039004656 is a `hidden beast` number, since 570 + 39 + 0 + 0 + 46 + 5 + 6 = 666.

57039004656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57039004651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3876031 + ... + 3890718.

It is an arithmetic number, because the mean of its divisors is an integer number (2166923250).

Almost surely, 2^57039004656 is an apocalyptic number.

It is an amenable number.

57039004656 is an abundant number, since it is smaller than the sum of its proper divisors (116314855344).

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

57039004656 is a wasteful number, since it uses less digits than its factorization.

57039004656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7766783 (or 7766771 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The spelling of 57039004656 in words is "fifty-seven billion, thirty-nine million, four thousand, six hundred fifty-six".