256622330400313 has 4 divisors (see below), whose sum is σ = 256637331430480. Its totient is φ = 256607329370148.

The previous prime is 256622330400311. The next prime is 256622330400329. The reversal of 256622330400313 is 313004033226652.

256622330400313 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 256622330400313 - 2¹ = 256622330400311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256622330400311) 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, 7500489423 + ... + 7500523636.

It is an arithmetic number, because the mean of its divisors is an integer number (64159332857620).

Almost surely, 2^{256622330400313} is an apocalyptic number.

It is an amenable number.

256622330400313 is a deficient number, since it is larger than the sum of its proper divisors (15001030167).

256622330400313 is a wasteful number, since it uses less digits than its factorization.

256622330400313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15001030166.

The product of its (nonzero) digits is 466560, while the sum is 40.

Adding to 256622330400313 its reverse (313004033226652), we get a palindrome (569626363626965).

The spelling of 256622330400313 in words is "two hundred fifty-six trillion, six hundred twenty-two billion, three hundred thirty million, four hundred thousand, three hundred thirteen".