65676667656 has 32 divisors (see below), whose sum is σ = 165884372640. Its totient is φ = 21666528768.

The previous prime is 65676667643. The next prime is 65676667687.

65676667656 is nontrivially palindromic in base 10.

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, 14103486 + ... + 14108141.

It is an arithmetic number, because the mean of its divisors is an integer number (5183886645).

Almost surely, 2^65676667656 is an apocalyptic number.

It is an amenable number.

65676667656 is an abundant number, since it is smaller than the sum of its proper divisors (100207704984).

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

65676667656 is a wasteful number, since it uses less digits than its factorization.

65676667656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28211733 (or 28211729 counting only the distinct ones).

The product of its digits is 342921600, while the sum is 66.

The spelling of 65676667656 in words is "sixty-five billion, six hundred seventy-six million, six hundred sixty-seven thousand, six hundred fifty-six".