256316220053760 has 72 divisors (see below), whose sum is σ = 818609927808960. Its totient is φ = 68350992013312.

The previous prime is 256316220053759. The next prime is 256316220053821. The reversal of 256316220053760 is 67350022613652.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 33374503980 + ... + 33374511659.

It is an arithmetic number, because the mean of its divisors is an integer number (11369582330680).

Almost surely, 2^{256316220053760} is an apocalyptic number.

256316220053760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256316220053760 is an abundant number, since it is smaller than the sum of its proper divisors (562293707755200).

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

256316220053760 is an equidigital number, since it uses as much as digits as its factorization.

256316220053760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66749015663 (or 66749015649 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 48.

The spelling of 256316220053760 in words is "two hundred fifty-six trillion, three hundred sixteen billion, two hundred twenty million, fifty-three thousand, seven hundred sixty".