256632012533704 has 8 divisors (see below), whose sum is σ = 481185023500710. Its totient is φ = 128316006266848.

The previous prime is 256632012533627. The next prime is 256632012533707. The reversal of 256632012533704 is 407335210236652.

It can be written as a sum of positive squares in only one way, i.e., 249839056464804 + 6792956068900 = 15806298^2 + 2606330^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (256632012533707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16039500783349 + ... + 16039500783364.

Almost surely, 2^{256632012533704} is an apocalyptic number.

It is an amenable number.

256632012533704 is a deficient number, since it is larger than the sum of its proper divisors (224553010967006).

256632012533704 is a wasteful number, since it uses less digits than its factorization.

256632012533704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32079001566719 (or 32079001566715 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 49.

The spelling of 256632012533704 in words is "two hundred fifty-six trillion, six hundred thirty-two billion, twelve million, five hundred thirty-three thousand, seven hundred four".