6666172 has 12 divisors (see below), whose sum is σ = 12068280. Its totient is φ = 3218096.

The previous prime is 6666167. The next prime is 6666173. The reversal of 6666172 is 2716666.

6666172 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28618 + ... + 28849.

It is an arithmetic number, because the mean of its divisors is an integer number (1005690).

Almost surely, 2^6666172 is an apocalyptic number.

It is an amenable number.

6666172 is a deficient number, since it is larger than the sum of its proper divisors (5402108).

6666172 is a wasteful number, since it uses less digits than its factorization.

6666172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57500 (or 57498 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 6666172 is about 2581.8931039065. The cubic root of 6666172 is about 188.2025506695.

The spelling of 6666172 in words is "six million, six hundred sixty-six thousand, one hundred seventy-two".