256655075064522 has 8 divisors (see below), whose sum is σ = 513310150129056. Its totient is φ = 85551691688172.

The previous prime is 256655075064511. The next prime is 256655075064523. The reversal of 256655075064522 is 225460570556652.

It is a happy number.

256655075064522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

256655075064522 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (256655075064523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21387922922038 + ... + 21387922922049.

It is an arithmetic number, because the mean of its divisors is an integer number (64163768766132).

Almost surely, 2^{256655075064522} is an apocalyptic number.

256655075064522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

256655075064522 is a wasteful number, since it uses less digits than its factorization.

256655075064522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42775845844092.

The product of its (nonzero) digits is 151200000, while the sum is 60.

The spelling of 256655075064522 in words is "two hundred fifty-six trillion, six hundred fifty-five billion, seventy-five million, sixty-four thousand, five hundred twenty-two".