6639064502 has 16 divisors (see below), whose sum is σ = 12050739360. Its totient is φ = 2677941888.

The previous prime is 6639064463. The next prime is 6639064529. The reversal of 6639064502 is 2054609366.

It is a self number, because there is not a number n which added to its sum of digits gives 6639064502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13947377 + ... + 13947852.

It is an arithmetic number, because the mean of its divisors is an integer number (753171210).

Almost surely, 2^6639064502 is an apocalyptic number.

6639064502 is a deficient number, since it is larger than the sum of its proper divisors (5411674858).

6639064502 is a wasteful number, since it uses less digits than its factorization.

6639064502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27895255.

The product of its (nonzero) digits is 233280, while the sum is 41.

The square root of 6639064502 is about 81480.4547238170. The cubic root of 6639064502 is about 1879.4710015707.

The spelling of 6639064502 in words is "six billion, six hundred thirty-nine million, sixty-four thousand, five hundred two".