256623314164016 has 80 divisors (see below), whose sum is σ = 510738267801600. Its totient is φ = 124852618471680.

The previous prime is 256623314164003. The next prime is 256623314164039. The reversal of 256623314164016 is 610461413326652.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190429061 + ... + 191771931.

It is an arithmetic number, because the mean of its divisors is an integer number (6384228347520).

Almost surely, 2^{256623314164016} is an apocalyptic number.

It is an amenable number.

256623314164016 is a deficient number, since it is larger than the sum of its proper divisors (254114953637584).

256623314164016 is a wasteful number, since it uses less digits than its factorization.

256623314164016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344402 (or 1344396 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 50.

The spelling of 256623314164016 in words is "two hundred fifty-six trillion, six hundred twenty-three billion, three hundred fourteen million, one hundred sixty-four thousand, sixteen".