6669977884 has 12 divisors (see below), whose sum is σ = 11673836944. Its totient is φ = 3334595904.

The previous prime is 6669977879. The next prime is 6669977893. The reversal of 6669977884 is 4887799666.

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 3 ways as a sum of consecutive naturals, for example, 58269 + ... + 129364.

Almost surely, 2^6669977884 is an apocalyptic number.

It is an amenable number.

6669977884 is a deficient number, since it is larger than the sum of its proper divisors (5003859060).

6669977884 is a wasteful number, since it uses less digits than its factorization.

6669977884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196524 (or 196522 counting only the distinct ones).

The product of its digits is 219469824, while the sum is 70.

The square root of 6669977884 is about 81669.9325578269. The cubic root of 6669977884 is about 1882.3836036690.

The spelling of 6669977884 in words is "six billion, six hundred sixty-nine million, nine hundred seventy-seven thousand, eight hundred eighty-four".