66104570 has 32 divisors (see below), whose sum is σ = 139667328. Its totient is φ = 22051008.

The previous prime is 66104569. The next prime is 66104611. The reversal of 66104570 is 7540166.

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, 10172 + ... + 15351.

It is an arithmetic number, because the mean of its divisors is an integer number (4364604).

Almost surely, 2^66104570 is an apocalyptic number.

66104570 is an abundant number, since it is smaller than the sum of its proper divisors (73562758).

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

66104570 is a wasteful number, since it uses less digits than its factorization.

66104570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25574.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 66104570 is about 8130.4716960334. The cubic root of 66104570 is about 404.3373199819.

The spelling of 66104570 in words is "sixty-six million, one hundred four thousand, five hundred seventy".