65968686956 has 48 divisors (see below), whose sum is σ = 118946322432. Its totient is φ = 31999968000.

The previous prime is 65968686947. The next prime is 65968686989.

65968686956 is nontrivially palindromic in base 10.

65968686956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 33811781 + ... + 33813731.

It is an arithmetic number, because the mean of its divisors is an integer number (2478048384).

Almost surely, 2^65968686956 is an apocalyptic number.

It is an amenable number.

65968686956 is a deficient number, since it is larger than the sum of its proper divisors (52977635476).

65968686956 is a wasteful number, since it uses less digits than its factorization.

65968686956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3870 (or 3868 counting only the distinct ones).

The product of its digits is 1007769600, while the sum is 74.

The spelling of 65968686956 in words is "sixty-five billion, nine hundred sixty-eight million, six hundred eighty-six thousand, nine hundred fifty-six".