66572108 has 12 divisors (see below), whose sum is σ = 116811240. Its totient is φ = 33197472.

The previous prime is 66572027. The next prime is 66572111. The reversal of 66572108 is 80127566.

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, 20441 + ... + 23472.

It is an arithmetic number, because the mean of its divisors is an integer number (9734270).

Almost surely, 2^66572108 is an apocalyptic number.

It is an amenable number.

66572108 is a deficient number, since it is larger than the sum of its proper divisors (50239132).

66572108 is a wasteful number, since it uses less digits than its factorization.

66572108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44296 (or 44294 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 66572108 is about 8159.1732424309. The cubic root of 66572108 is about 405.2883340246.

The spelling of 66572108 in words is "sixty-six million, five hundred seventy-two thousand, one hundred eight".