65297279256 has 48 divisors (see below), whose sum is σ = 179432614200. Its totient is φ = 19787053440.

The previous prime is 65297279249. The next prime is 65297279279.

65297279256 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 65297279256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11239741 + ... + 11245548.

Almost surely, 2^65297279256 is an apocalyptic number.

65297279256 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

65297279256 is an abundant number, since it is smaller than the sum of its proper divisors (114135334944).

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

65297279256 is a wasteful number, since it uses less digits than its factorization.

65297279256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22485320 (or 22485305 counting only the distinct ones).

The product of its digits is 28576800, while the sum is 60.

The spelling of 65297279256 in words is "sixty-five billion, two hundred ninety-seven million, two hundred seventy-nine thousand, two hundred fifty-six".