66372163 has 8 divisors (see below), whose sum is σ = 77975856. Its totient is φ = 55696800.

The previous prime is 66372161. The next prime is 66372169. The reversal of 66372163 is 36127366.

66372163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 66372163 - 2¹ = 66372161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66372161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231928 + ... + 232213.

It is an arithmetic number, because the mean of its divisors is an integer number (9746982).

Almost surely, 2^66372163 is an apocalyptic number.

66372163 is a deficient number, since it is larger than the sum of its proper divisors (11603693).

66372163 is a wasteful number, since it uses less digits than its factorization.

66372163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464165.

The product of its digits is 27216, while the sum is 34.

The square root of 66372163 is about 8146.9112551936. The cubic root of 66372163 is about 404.8821747377.

The spelling of 66372163 in words is "sixty-six million, three hundred seventy-two thousand, one hundred sixty-three".