2555856548856 has 96 divisors (see below), whose sum is σ = 7627944083760. Its totient is φ = 768128610816.

The previous prime is 2555856548783. The next prime is 2555856548923. The reversal of 2555856548856 is 6588456585552.

2555856548856 is a `hidden beast` number, since 2 + 5 + 5 + 5 + 8 + 565 + 4 + 8 + 8 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31711101 + ... + 31791596.

Almost surely, 2^{2555856548856} is an apocalyptic number.

2555856548856 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2555856548856 is an abundant number, since it is smaller than the sum of its proper divisors (5072087534904).

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

2555856548856 is a wasteful number, since it uses less digits than its factorization.

2555856548856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63502765 (or 63502758 counting only the distinct ones).

The product of its digits is 2304000000, while the sum is 72.

The spelling of 2555856548856 in words is "two trillion, five hundred fifty-five billion, eight hundred fifty-six million, five hundred forty-eight thousand, eight hundred fifty-six".