66722463304 has 16 divisors (see below), whose sum is σ = 142976707200. Its totient is φ = 28595341392.

The previous prime is 66722463271. The next prime is 66722463323. The reversal of 66722463304 is 40336422766.

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, 595736224 + ... + 595736335.

It is an arithmetic number, because the mean of its divisors is an integer number (8936044200).

Almost surely, 2^66722463304 is an apocalyptic number.

It is an amenable number.

66722463304 is an abundant number, since it is smaller than the sum of its proper divisors (76254243896).

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

66722463304 is a wasteful number, since it uses less digits than its factorization.

66722463304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191472572 (or 1191472568 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 43.

The spelling of 66722463304 in words is "sixty-six billion, seven hundred twenty-two million, four hundred sixty-three thousand, three hundred four".