6623866992 has 40 divisors (see below), whose sum is σ = 17346071824. Its totient is φ = 2177708544.

The previous prime is 6623866987. The next prime is 6623867009. The reversal of 6623866992 is 2996683266.

It is a super-2 number, since 2×6623866992² = 87751227855414256128, which contains 22 as substring.

It is a congruent number.

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, 941683 + ... + 948690.

Almost surely, 2^6623866992 is an apocalyptic number.

It is an amenable number.

6623866992 is an abundant number, since it is smaller than the sum of its proper divisors (10722204832).

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

6623866992 is a wasteful number, since it uses less digits than its factorization.

6623866992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890457 (or 1890451 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 57.

The square root of 6623866992 is about 81387.1426700803. The cubic root of 6623866992 is about 1878.0358042942.

The spelling of 6623866992 in words is "six billion, six hundred twenty-three million, eight hundred sixty-six thousand, nine hundred ninety-two".