66324173 has 8 divisors (see below), whose sum is σ = 66873600. Its totient is φ = 65777488.

The previous prime is 66324161. The next prime is 66324233. The reversal of 66324173 is 37142366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66324173 - 2¹⁴ = 66307789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66324133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85415 + ... + 86187.

It is an arithmetic number, because the mean of its divisors is an integer number (8359200).

Almost surely, 2^66324173 is an apocalyptic number.

It is an amenable number.

66324173 is a deficient number, since it is larger than the sum of its proper divisors (549427).

66324173 is a wasteful number, since it uses less digits than its factorization.

66324173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371.

The product of its digits is 18144, while the sum is 32.

The square root of 66324173 is about 8143.9654346025. The cubic root of 66324173 is about 404.7845686553.

The spelling of 66324173 in words is "sixty-six million, three hundred twenty-four thousand, one hundred seventy-three".