65994763044 has 48 divisors (see below), whose sum is σ = 181663010816. Its totient is φ = 18247399200.

The previous prime is 65994762997. The next prime is 65994763073. The reversal of 65994763044 is 44036749956.

It is a happy number.

65994763044 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, 12669202 + ... + 12674409.

Almost surely, 2^65994763044 is an apocalyptic number.

It is an amenable number.

65994763044 is an abundant number, since it is smaller than the sum of its proper divisors (115668247772).

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

65994763044 is a wasteful number, since it uses less digits than its factorization.

65994763044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25343656 (or 25343654 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 57.

The spelling of 65994763044 in words is "sixty-five billion, nine hundred ninety-four million, seven hundred sixty-three thousand, forty-four".