6669977882 has 4 divisors (see below), whose sum is σ = 10004966826. Its totient is φ = 3334988940.

The previous prime is 6669977879. The next prime is 6669977893. The reversal of 6669977882 is 2887799666.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2887799666 = 2 ⋅1443899833.

It can be written as a sum of positive squares in only one way, i.e., 5767035481 + 902942401 = 75941^2 + 30049^2 .

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 as a sum of consecutive naturals, namely, 1667494469 + ... + 1667494472.

Almost surely, 2^6669977882 is an apocalyptic number.

6669977882 is a deficient number, since it is larger than the sum of its proper divisors (3334988944).

6669977882 is a wasteful number, since it uses less digits than its factorization.

6669977882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334988943.

The product of its digits is 109734912, while the sum is 68.

The square root of 6669977882 is about 81669.9325455825. The cubic root of 6669977882 is about 1882.3836034808.

The spelling of 6669977882 in words is "six billion, six hundred sixty-nine million, nine hundred seventy-seven thousand, eight hundred eighty-two".