65672427656 has 48 divisors (see below), whose sum is σ = 136687895820. Its totient is φ = 29555504000.

The previous prime is 65672427647. The next prime is 65672427661.

65672427656 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 65655862756 + 16564900 = 256234^2 + 4070^2 .

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, 238091 + ... + 433626.

Almost surely, 2^65672427656 is an apocalyptic number.

It is an amenable number.

65672427656 is an abundant number, since it is smaller than the sum of its proper divisors (71015468164).

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

65672427656 is a wasteful number, since it uses less digits than its factorization.

65672427656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671846 (or 671831 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 56.

The spelling of 65672427656 in words is "sixty-five billion, six hundred seventy-two million, four hundred twenty-seven thousand, six hundred fifty-six".