66572364 has 12 divisors (see below), whose sum is σ = 155335544. Its totient is φ = 22190784.

The previous prime is 66572353. The next prime is 66572377. The reversal of 66572364 is 46327566.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2773837 + ... + 2773860.

Almost surely, 2^66572364 is an apocalyptic number.

It is an amenable number.

66572364 is an abundant number, since it is smaller than the sum of its proper divisors (88763180).

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

66572364 is a wasteful number, since it uses less digits than its factorization.

66572364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5547704 (or 5547702 counting only the distinct ones).

The product of its digits is 181440, while the sum is 39.

The square root of 66572364 is about 8159.1889302798. The cubic root of 66572364 is about 405.2888535299.

The spelling of 66572364 in words is "sixty-six million, five hundred seventy-two thousand, three hundred sixty-four".