256327152566522 has 16 divisors (see below), whose sum is σ = 387099415735200. Its totient is φ = 127294139375952.

The previous prime is 256327152566467. The next prime is 256327152566533. The reversal of 256327152566522 is 225665251723652.

It is a super-2 number, since 2×256327152566522² (a number of 30 digits) contains 22 as substring.

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, 27250568 + ... + 35429475.

It is an arithmetic number, because the mean of its divisors is an integer number (24193713483450).

Almost surely, 2^{256327152566522} is an apocalyptic number.

256327152566522 is a deficient number, since it is larger than the sum of its proper divisors (130772263168678).

256327152566522 is a wasteful number, since it uses less digits than its factorization.

256327152566522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62693917.

The product of its digits is 90720000, while the sum is 59.

The spelling of 256327152566522 in words is "two hundred fifty-six trillion, three hundred twenty-seven billion, one hundred fifty-two million, five hundred sixty-six thousand, five hundred twenty-two".