256632652414321 has 12 divisors (see below), whose sum is σ = 274044005637120. Its totient is φ = 240272024383040.

The previous prime is 256632652414283. The next prime is 256632652414331. The reversal of 256632652414321 is 123414256236652.

It is a happy number.

It is not a de Polignac number, because 256632652414321 - 2¹¹ = 256632652412273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256632652414331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2324558041 + ... + 2324668438.

It is an arithmetic number, because the mean of its divisors is an integer number (22837000469760).

Almost surely, 2^{256632652414321} is an apocalyptic number.

It is an amenable number.

256632652414321 is a deficient number, since it is larger than the sum of its proper divisors (17411353222799).

256632652414321 is a wasteful number, since it uses less digits than its factorization.

256632652414321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4649226704 (or 4649226687 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 52.

The spelling of 256632652414321 in words is "two hundred fifty-six trillion, six hundred thirty-two billion, six hundred fifty-two million, four hundred fourteen thousand, three hundred twenty-one".