6668877992 has 32 divisors (see below), whose sum is σ = 14343609600. Its totient is φ = 2847459264.

The previous prime is 6668877977. The next prime is 6668878033. The reversal of 6668877992 is 2997788666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206288 + ... + 236415.

It is an arithmetic number, because the mean of its divisors is an integer number (448237800).

Almost surely, 2^6668877992 is an apocalyptic number.

It is an amenable number.

6668877992 is an abundant number, since it is smaller than the sum of its proper divisors (7674731608).

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

6668877992 is a wasteful number, since it uses less digits than its factorization.

6668877992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442985 (or 442981 counting only the distinct ones).

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

The square root of 6668877992 is about 81663.1985168350. The cubic root of 6668877992 is about 1882.2801284392.

The spelling of 6668877992 in words is "six billion, six hundred sixty-eight million, eight hundred seventy-seven thousand, nine hundred ninety-two".