66496932972 has 72 divisors (see below), whose sum is σ = 169398145280. Its totient is φ = 21993521760.

The previous prime is 66496932959. The next prime is 66496933003. The reversal of 66496932972 is 27923969466.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3693729 + ... + 3711687.

Almost surely, 2^66496932972 is an apocalyptic number.

It is an amenable number.

66496932972 is an abundant number, since it is smaller than the sum of its proper divisors (102901212308).

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

66496932972 is a wasteful number, since it uses less digits than its factorization.

66496932972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18763 (or 18758 counting only the distinct ones).

The product of its digits is 52907904, while the sum is 63.

The spelling of 66496932972 in words is "sixty-six billion, four hundred ninety-six million, nine hundred thirty-two thousand, nine hundred seventy-two".