66562274352 has 80 divisors (see below), whose sum is σ = 196545134592. Its totient is φ = 19015088640.

The previous prime is 66562274297. The next prime is 66562274399. The reversal of 66562274352 is 25347226566.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 4554577 + ... + 4569167.

Almost surely, 2^66562274352 is an apocalyptic number.

It is an amenable number.

66562274352 is an abundant number, since it is smaller than the sum of its proper divisors (129982860240).

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

66562274352 is a wasteful number, since it uses less digits than its factorization.

66562274352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28186 (or 28180 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 48.

The spelling of 66562274352 in words is "sixty-six billion, five hundred sixty-two million, two hundred seventy-four thousand, three hundred fifty-two".