256501336300 has 72 divisors (see below), whose sum is σ = 642926818800. Its totient is φ = 87786547200.

The previous prime is 256501336271. The next prime is 256501336303. The reversal of 256501336300 is 3633105652.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (256501336303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6839625 + ... + 6877024.

It is an arithmetic number, because the mean of its divisors is an integer number (8929539150).

Almost surely, 2^256501336300 is an apocalyptic number.

256501336300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256501336300 is an abundant number, since it is smaller than the sum of its proper divisors (386425482500).

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

256501336300 is a wasteful number, since it uses less digits than its factorization.

256501336300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13716691 (or 13716684 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 34.

The spelling of 256501336300 in words is "two hundred fifty-six billion, five hundred one million, three hundred thirty-six thousand, three hundred".