256414063065 has 8 divisors (see below), whose sum is σ = 410262500928. Its totient is φ = 136754166960.

The previous prime is 256414063049. The next prime is 256414063079. The reversal of 256414063065 is 560360414652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 256414063065 - 2⁴ = 256414063049 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8547135421 + ... + 8547135450.

It is an arithmetic number, because the mean of its divisors is an integer number (51282812616).

Almost surely, 2^256414063065 is an apocalyptic number.

It is an amenable number.

256414063065 is a deficient number, since it is larger than the sum of its proper divisors (153848437863).

256414063065 is a wasteful number, since it uses less digits than its factorization.

256414063065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17094270879.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 256414063065 in words is "two hundred fifty-six billion, four hundred fourteen million, sixty-three thousand, sixty-five".