6624542636 has 12 divisors (see below), whose sum is σ = 11597501328. Its totient is φ = 3310970832.

The previous prime is 6624542627. The next prime is 6624542671. The reversal of 6624542636 is 6362454266.

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, 313616 + ... + 334071.

It is an arithmetic number, because the mean of its divisors is an integer number (966458444).

Almost surely, 2^6624542636 is an apocalyptic number.

It is an amenable number.

6624542636 is a deficient number, since it is larger than the sum of its proper divisors (4972958692).

6624542636 is a wasteful number, since it uses less digits than its factorization.

6624542636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650248 (or 650246 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 44.

The square root of 6624542636 is about 81391.2933672884. The cubic root of 6624542636 is about 1878.0996562448.

The spelling of 6624542636 in words is "six billion, six hundred twenty-four million, five hundred forty-two thousand, six hundred thirty-six".