6636144 has 40 divisors (see below), whose sum is σ = 17891712. Its totient is φ = 2115520.

The previous prime is 6636127. The next prime is 6636169. The reversal of 6636144 is 4416366.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1902 + ... + 4109.

Almost surely, 2^6636144 is an apocalyptic number.

It is an amenable number.

6636144 is an abundant number, since it is smaller than the sum of its proper divisors (11255568).

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

6636144 is a wasteful number, since it uses less digits than its factorization.

6636144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6045 (or 6039 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 6636144 is about 2576.0714275812. The cubic root of 6636144 is about 187.9195370173.

The spelling of 6636144 in words is "six million, six hundred thirty-six thousand, one hundred forty-four".