6659972588 has 6 divisors (see below), whose sum is σ = 11654952036. Its totient is φ = 3329986292.

The previous prime is 6659972551. The next prime is 6659972597. The reversal of 6659972588 is 8852799566.

It is a super-2 number, since 2×6659972588² = 88710469745822835488, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 832496570 + ... + 832496577.

It is an arithmetic number, because the mean of its divisors is an integer number (1942492006).

Almost surely, 2^6659972588 is an apocalyptic number.

It is an amenable number.

6659972588 is a deficient number, since it is larger than the sum of its proper divisors (4994979448).

6659972588 is a wasteful number, since it uses less digits than its factorization.

6659972588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664993151 (or 1664993149 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 65.

The square root of 6659972588 is about 81608.6551047130. The cubic root of 6659972588 is about 1881.4419098814.

The spelling of 6659972588 in words is "six billion, six hundred fifty-nine million, nine hundred seventy-two thousand, five hundred eighty-eight".