256350626616 has 64 divisors (see below), whose sum is σ = 739682196480. Its totient is φ = 72517852800.

The previous prime is 256350626611. The next prime is 256350626621. The reversal of 256350626616 is 616626053652.

It is an interprime number because it is at equal distance from previous prime (256350626611) and next prime (256350626621).

It is a super-2 number, since 2×256350626616² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256350626611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7536976 + ... + 7570911.

It is an arithmetic number, because the mean of its divisors is an integer number (11557534320).

Almost surely, 2^256350626616 is an apocalyptic number.

It is an amenable number.

256350626616 is an abundant number, since it is smaller than the sum of its proper divisors (483331569864).

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

256350626616 is a wasteful number, since it uses less digits than its factorization.

256350626616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15108004 (or 15108000 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 256350626616 in words is "two hundred fifty-six billion, three hundred fifty million, six hundred twenty-six thousand, six hundred sixteen".