56857554180 has 192 divisors, whose sum is σ = 202648320000. Its totient is φ = 12964634496.

The previous prime is 56857554139. The next prime is 56857554223. The reversal of 56857554180 is 8145575865.

56857554180 is a `hidden beast` number, since 5 + 6 + 8 + 5 + 7 + 554 + 1 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1565871 + ... + 1601769.

It is an arithmetic number, because the mean of its divisors is an integer number (1055460000).

Almost surely, 2^56857554180 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56857554180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101324160000).

56857554180 is an abundant number, since it is smaller than the sum of its proper divisors (145790765820).

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

56857554180 is a wasteful number, since it uses less digits than its factorization.

56857554180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36343 (or 36335 counting only the distinct ones).

The product of its (nonzero) digits is 6720000, while the sum is 54.

The spelling of 56857554180 in words is "fifty-six billion, eight hundred fifty-seven million, five hundred fifty-four thousand, one hundred eighty".