66575922 has 32 divisors (see below), whose sum is σ = 152865792. Its totient is φ = 18935184.

The previous prime is 66575881. The next prime is 66575933. The reversal of 66575922 is 22957566.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 6043 + ... + 13025.

It is an arithmetic number, because the mean of its divisors is an integer number (4777056).

Almost surely, 2^66575922 is an apocalyptic number.

66575922 is an abundant number, since it is smaller than the sum of its proper divisors (86289870).

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

66575922 is a wasteful number, since it uses less digits than its factorization.

66575922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7222.

The product of its digits is 226800, while the sum is 42.

The square root of 66575922 is about 8159.4069637444. The cubic root of 66575922 is about 405.2960737034.

The spelling of 66575922 in words is "sixty-six million, five hundred seventy-five thousand, nine hundred twenty-two".