2256311755818 has 48 divisors (see below), whose sum is σ = 4894241523912. Its totient is φ = 751248000000.

The previous prime is 2256311755807. The next prime is 2256311755837. The reversal of 2256311755818 is 8185571136522.

2256311755818 is a `hidden beast` number, since 2 + 2 + 5 + 63 + 1 + 17 + 558 + 18 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1253443702329 + 1002868053489 = 1119573^2 + 1001433^2 .

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 23 ways as a sum of consecutive naturals, for example, 79994118 + ... + 80022318.

Almost surely, 2^{2256311755818} is an apocalyptic number.

2256311755818 is an abundant number, since it is smaller than the sum of its proper divisors (2637929768094).

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

2256311755818 is a wasteful number, since it uses less digits than its factorization.

2256311755818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33111 (or 33108 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 54.

The spelling of 2256311755818 in words is "two trillion, two hundred fifty-six billion, three hundred eleven million, seven hundred fifty-five thousand, eight hundred eighteen".