6684370564 has 9 divisors (see below), whose sum is σ = 11697934647. Its totient is φ = 3342103524.

The previous prime is 6684370549. The next prime is 6684370579. The reversal of 6684370564 is 4650734866.

The square root of 6684370564 is 81758.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (6684370549) and next prime (6684370579).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 143077 + ... + 183955.

Almost surely, 2^6684370564 is an apocalyptic number.

6684370564 is the 81758-th square number.

It is an amenable number.

6684370564 is a deficient number, since it is larger than the sum of its proper divisors (5013564083).

6684370564 is an frugal number, since it uses more digits than its factorization.

6684370564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81762 (or 40881 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 49.

The cubic root of 6684370564 is about 1883.7365857230.

Multiplying 6684370564 by its sum of digits (49), we get a square (327534157636 = 572306²).

The spelling of 6684370564 in words is "six billion, six hundred eighty-four million, three hundred seventy thousand, five hundred sixty-four".