6644646602 has 16 divisors (see below), whose sum is σ = 10890817632. Its totient is φ = 3015360720.

The previous prime is 6644646587. The next prime is 6644646647. The reversal of 6644646602 is 2066464466.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232868 + ... + 259839.

It is an arithmetic number, because the mean of its divisors is an integer number (680676102).

Almost surely, 2^6644646602 is an apocalyptic number.

6644646602 is a deficient number, since it is larger than the sum of its proper divisors (4246171030).

6644646602 is a wasteful number, since it uses less digits than its factorization.

6644646602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493333.

The product of its (nonzero) digits is 995328, while the sum is 44.

The square root of 6644646602 is about 81514.7017537327. The cubic root of 6644646602 is about 1879.9976046823.

The spelling of 6644646602 in words is "six billion, six hundred forty-four million, six hundred forty-six thousand, six hundred two".