256523676620 has 12 divisors (see below), whose sum is σ = 538699720944. Its totient is φ = 102609470640.

The previous prime is 256523676611. The next prime is 256523676623. The reversal of 256523676620 is 26676325652.

256523676620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (256523676623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6413091896 + ... + 6413091935.

It is an arithmetic number, because the mean of its divisors is an integer number (44891643412).

Almost surely, 2^256523676620 is an apocalyptic number.

256523676620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256523676620 is an abundant number, since it is smaller than the sum of its proper divisors (282176044324).

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

256523676620 is a wasteful number, since it uses less digits than its factorization.

256523676620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12826183840 (or 12826183838 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 50.

The spelling of 256523676620 in words is "two hundred fifty-six billion, five hundred twenty-three million, six hundred seventy-six thousand, six hundred twenty".