256311323113652 has 12 divisors (see below), whose sum is σ = 448552654390176. Its totient is φ = 128153421859320.

The previous prime is 256311323113619. The next prime is 256311323113661.

256311323113652 is nontrivially palindromic in base 10.

256311323113652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×256311323113652² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559666874 + ... + 560124657.

It is an arithmetic number, because the mean of its divisors is an integer number (37379387865848).

Almost surely, 2^{256311323113652} is an apocalyptic number.

It is an amenable number.

256311323113652 is a deficient number, since it is larger than the sum of its proper divisors (192241331276524).

256311323113652 is a wasteful number, since it uses less digits than its factorization.

256311323113652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119848758 (or 1119848756 counting only the distinct ones).

The product of its digits is 583200, while the sum is 44.

The spelling of 256311323113652 in words is "two hundred fifty-six trillion, three hundred eleven billion, three hundred twenty-three million, one hundred thirteen thousand, six hundred fifty-two".