65650534688 has 24 divisors (see below), whose sum is σ = 130267210752. Its totient is φ = 32566798656.

The previous prime is 65650534667. The next prime is 65650534711. The reversal of 65650534688 is 88643505656.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8073020 + ... + 8081147.

It is an arithmetic number, because the mean of its divisors is an integer number (5427800448).

Almost surely, 2^65650534688 is an apocalyptic number.

It is an amenable number.

65650534688 is a deficient number, since it is larger than the sum of its proper divisors (64616676064).

65650534688 is a wasteful number, since it uses less digits than its factorization.

65650534688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16154304 (or 16154296 counting only the distinct ones).

The product of its (nonzero) digits is 20736000, while the sum is 56.

The spelling of 65650534688 in words is "sixty-five billion, six hundred fifty million, five hundred thirty-four thousand, six hundred eighty-eight".