256063410165 has 16 divisors (see below), whose sum is σ = 409745088000. Its totient is φ = 136552608192.

The previous prime is 256063410157. The next prime is 256063410167. The reversal of 256063410165 is 561014360652.

It is not a de Polignac number, because 256063410165 - 2³ = 256063410157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256063410167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 762690 + ... + 1045859.

It is an arithmetic number, because the mean of its divisors is an integer number (25609068000).

Almost surely, 2^256063410165 is an apocalyptic number.

It is an amenable number.

256063410165 is a deficient number, since it is larger than the sum of its proper divisors (153681677835).

256063410165 is a wasteful number, since it uses less digits than its factorization.

256063410165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817996.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 256063410165 in words is "two hundred fifty-six billion, sixty-three million, four hundred ten thousand, one hundred sixty-five".