6620042004 has 24 divisors (see below), whose sum is σ = 15449339808. Its totient is φ = 2206312800.

The previous prime is 6620041991. The next prime is 6620042027. The reversal of 6620042004 is 4002400266.

It is a super-2 number, since 2×6620042004² = 87649912269448672032, 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, 34654 + ... + 120170.

It is an arithmetic number, because the mean of its divisors is an integer number (643722492).

Almost surely, 2^6620042004 is an apocalyptic number.

It is an amenable number.

6620042004 is an abundant number, since it is smaller than the sum of its proper divisors (8829297804).

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

6620042004 is a wasteful number, since it uses less digits than its factorization.

6620042004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91975 (or 91973 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 6620042004 is about 81363.6405527678. The cubic root of 6620042004 is about 1877.6742406951.

The spelling of 6620042004 in words is "six billion, six hundred twenty million, forty-two thousand, four".