256733454271330 has 16 divisors (see below), whose sum is σ = 462120400668024. Its totient is φ = 102693341046400.

The previous prime is 256733454271303. The next prime is 256733454271361. The reversal of 256733454271330 is 33172454337652.

256733454271330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 72493253404209 + 184240200867121 = 8514297^2 + 13573511^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44070894 + ... + 49555126.

Almost surely, 2^{256733454271330} is an apocalyptic number.

256733454271330 is a deficient number, since it is larger than the sum of its proper divisors (205386946396694).

256733454271330 is a wasteful number, since it uses less digits than its factorization.

256733454271330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10165541.

The product of its (nonzero) digits is 38102400, while the sum is 55.

The spelling of 256733454271330 in words is "two hundred fifty-six trillion, seven hundred thirty-three billion, four hundred fifty-four million, two hundred seventy-one thousand, three hundred thirty".