6656172 has 24 divisors (see below), whose sum is σ = 15634416. Its totient is φ = 2203968.

The previous prime is 6656171. The next prime is 6656183. The reversal of 6656172 is 2716566.

It is not an unprimeable number, because it can be changed into a prime (6656171) 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, 118 + ... + 3650.

It is an arithmetic number, because the mean of its divisors is an integer number (651434).

Almost surely, 2^6656172 is an apocalyptic number.

It is an amenable number.

6656172 is an abundant number, since it is smaller than the sum of its proper divisors (8978244).

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

6656172 is a wasteful number, since it uses less digits than its factorization.

6656172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3697 (or 3695 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 6656172 is about 2579.9558135751. The cubic root of 6656172 is about 188.1083953145.

The spelling of 6656172 in words is "six million, six hundred fifty-six thousand, one hundred seventy-two".