256324660368 has 160 divisors (see below), whose sum is σ = 783571276800. Its totient is φ = 70646327808.

The previous prime is 256324660337. The next prime is 256324660379. The reversal of 256324660368 is 863066423652.

256324660368 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 256324660368.

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, 11320963 + ... + 11343581.

It is an arithmetic number, because the mean of its divisors is an integer number (4897320480).

Almost surely, 2^256324660368 is an apocalyptic number.

256324660368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256324660368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391785638400).

256324660368 is an abundant number, since it is smaller than the sum of its proper divisors (527246616432).

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

256324660368 is a wasteful number, since it uses less digits than its factorization.

256324660368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23829 (or 23823 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 51.

The spelling of 256324660368 in words is "two hundred fifty-six billion, three hundred twenty-four million, six hundred sixty thousand, three hundred sixty-eight".