66228174 has 24 divisors (see below), whose sum is σ = 144129960. Its totient is φ = 21978288.

The previous prime is 66228157. The next prime is 66228181. The reversal of 66228174 is 47182266.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3912 + ... + 12155.

It is an arithmetic number, because the mean of its divisors is an integer number (6005415).

Almost surely, 2^66228174 is an apocalyptic number.

66228174 is an abundant number, since it is smaller than the sum of its proper divisors (77901786).

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

66228174 is a wasteful number, since it uses less digits than its factorization.

66228174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16304 (or 16301 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 66228174 is about 8138.0694270816. The cubic root of 66228174 is about 404.5891764599.

The spelling of 66228174 in words is "sixty-six million, two hundred twenty-eight thousand, one hundred seventy-four".