56580654856 has 128 divisors (see below), whose sum is σ = 128310739200. Its totient is φ = 23109166080.

The previous prime is 56580654847. The next prime is 56580654881. The reversal of 56580654856 is 65845608565.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a self number, because there is not a number n which added to its sum of digits gives 56580654856.

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, 2158726 + ... + 2184778.

It is an arithmetic number, because the mean of its divisors is an integer number (1002427650).

Almost surely, 2^56580654856 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 56580654856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64155369600).

56580654856 is an abundant number, since it is smaller than the sum of its proper divisors (71730084344).

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

56580654856 is a wasteful number, since it uses less digits than its factorization.

56580654856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26159 (or 26155 counting only the distinct ones).

The product of its (nonzero) digits is 34560000, while the sum is 58.

The spelling of 56580654856 in words is "fifty-six billion, five hundred eighty million, six hundred fifty-four thousand, eight hundred fifty-six".