6659144 has 16 divisors (see below), whose sum is σ = 13029120. Its totient is φ = 3184720.

The previous prime is 6659113. The next prime is 6659201. The reversal of 6659144 is 4419566.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17912 + ... + 18279.

It is an arithmetic number, because the mean of its divisors is an integer number (814320).

Almost surely, 2^6659144 is an apocalyptic number.

It is an amenable number.

6659144 is a deficient number, since it is larger than the sum of its proper divisors (6369976).

6659144 is a wasteful number, since it uses less digits than its factorization.

6659144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36220 (or 36216 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 6659144 is about 2580.5317281522. The cubic root of 6659144 is about 188.1363881290.

The spelling of 6659144 in words is "six million, six hundred fifty-nine thousand, one hundred forty-four".