66496896944 has 20 divisors (see below), whose sum is σ = 129405312024. Its totient is φ = 33101977728.

The previous prime is 66496896943. The next prime is 66496896997. The reversal of 66496896944 is 44969869466.

It is not an unprimeable number, because it can be changed into a prime (66496896943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9150677 + ... + 9157940.

Almost surely, 2^66496896944 is an apocalyptic number.

It is an amenable number.

66496896944 is a deficient number, since it is larger than the sum of its proper divisors (62908415080).

66496896944 is a wasteful number, since it uses less digits than its factorization.

66496896944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18308852 (or 18308846 counting only the distinct ones).

The product of its digits is 483729408, while the sum is 71.

The spelling of 66496896944 in words is "sixty-six billion, four hundred ninety-six million, eight hundred ninety-six thousand, nine hundred forty-four".