6684664326 has 32 divisors (see below), whose sum is σ = 13669896960. Its totient is φ = 2178425184.

The previous prime is 6684664309. The next prime is 6684664369. The reversal of 6684664326 is 6234664866.

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 15 ways as a sum of consecutive naturals, for example, 52855 + ... + 127133.

It is an arithmetic number, because the mean of its divisors is an integer number (427184280).

Almost surely, 2^6684664326 is an apocalyptic number.

6684664326 is an abundant number, since it is smaller than the sum of its proper divisors (6985232634).

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

6684664326 is a wasteful number, since it uses less digits than its factorization.

6684664326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74620.

The product of its digits is 5971968, while the sum is 51.

The square root of 6684664326 is about 81759.7965139346. The cubic root of 6684664326 is about 1883.7641805487.

The spelling of 6684664326 in words is "six billion, six hundred eighty-four million, six hundred sixty-four thousand, three hundred twenty-six".