2256281808156 has 108 divisors (see below), whose sum is σ = 5769521365608. Its totient is φ = 743452504704.

The previous prime is 2256281808113. The next prime is 2256281808191. The reversal of 2256281808156 is 6518081826522.

2256281808156 is a `hidden beast` number, since 2 + 2 + 5 + 628 + 1 + 8 + 0 + 8 + 1 + 5 + 6 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 174804255 + ... + 174817161.

It is an arithmetic number, because the mean of its divisors is an integer number (53421494126).

Almost surely, 2^{2256281808156} is an apocalyptic number.

It is an amenable number.

2256281808156 is an abundant number, since it is smaller than the sum of its proper divisors (3513239557452).

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

2256281808156 is a wasteful number, since it uses less digits than its factorization.

2256281808156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13428 (or 13266 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 54.

The spelling of 2256281808156 in words is "two trillion, two hundred fifty-six billion, two hundred eighty-one million, eight hundred eight thousand, one hundred fifty-six".