256622333334461 has 4 divisors (see below), whose sum is σ = 259870717300800. Its totient is φ = 253373949368124.

The previous prime is 256622333334377. The next prime is 256622333334503. The reversal of 256622333334461 is 164433333226652.

256622333334461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 256622333334461 - 2²⁶ = 256622266225597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256622333334161) 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, 1624191983051 + ... + 1624191983208.

It is an arithmetic number, because the mean of its divisors is an integer number (64967679325200).

Almost surely, 2^{256622333334461} is an apocalyptic number.

It is an amenable number.

256622333334461 is a deficient number, since it is larger than the sum of its proper divisors (3248383966339).

256622333334461 is an equidigital number, since it uses as much as digits as its factorization.

256622333334461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3248383966338.

The product of its digits is 33592320, while the sum is 53.

The spelling of 256622333334461 in words is "two hundred fifty-six trillion, six hundred twenty-two billion, three hundred thirty-three million, three hundred thirty-four thousand, four hundred sixty-one".