57118656000 has 320 divisors, whose sum is σ = 217039680000. Its totient is φ = 13055385600.

The previous prime is 57118655999. The next prime is 57118656013. The reversal of 57118656000 is 65681175.

It is a tau number, because it is divible by the number of its divisors (320).

It is a self number, because there is not a number n which added to its sum of digits gives 57118656000.

It is a congruent number.

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, 1322751 + ... + 1365249.

It is an arithmetic number, because the mean of its divisors is an integer number (678249000).

Almost surely, 2^57118656000 is an apocalyptic number.

57118656000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57118656000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108519840000).

57118656000 is an abundant number, since it is smaller than the sum of its proper divisors (159921024000).

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

57118656000 is an equidigital number, since it uses as much as digits as its factorization.

57118656000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42542 (or 42516 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

The spelling of 57118656000 in words is "fifty-seven billion, one hundred eighteen million, six hundred fifty-six thousand".