65257255275256 has 64 divisors (see below), whose sum is σ = 133659209606400. Its totient is φ = 29622757536000.

The previous prime is 65257255275241. The next prime is 65257255275287.

65257255275256 is nontrivially palindromic in base 10.

It is a congruent 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, 197944156 + ... + 198273556.

It is an arithmetic number, because the mean of its divisors is an integer number (2088425150100).

Almost surely, 2^{65257255275256} is an apocalyptic number.

It is an amenable number.

65257255275256 is an abundant number, since it is smaller than the sum of its proper divisors (68401954331144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65257255275256 is a wasteful number, since it uses less digits than its factorization.

65257255275256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332420 (or 332416 counting only the distinct ones).

The product of its digits is 441000000, while the sum is 64.

The spelling of 65257255275256 in words is "sixty-five trillion, two hundred fifty-seven billion, two hundred fifty-five million, two hundred seventy-five thousand, two hundred fifty-six".