256855534032360 has 128 divisors (see below), whose sum is σ = 771180552777600. Its totient is φ = 68440250695680.

The previous prime is 256855534032341. The next prime is 256855534032389. The reversal of 256855534032360 is 63230435558652.

It is a self number, because there is not a number n which added to its sum of digits gives 256855534032360.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1130755995 + ... + 1130983125.

It is an arithmetic number, because the mean of its divisors is an integer number (6024848068575).

Almost surely, 2^{256855534032360} is an apocalyptic number.

256855534032360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256855534032360 is an abundant number, since it is smaller than the sum of its proper divisors (514325018745240).

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

256855534032360 is a wasteful number, since it uses less digits than its factorization.

256855534032360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234611 (or 234607 counting only the distinct ones).

The product of its (nonzero) digits is 77760000, while the sum is 57.

The spelling of 256855534032360 in words is "two hundred fifty-six trillion, eight hundred fifty-five billion, five hundred thirty-four million, thirty-two thousand, three hundred sixty".