6600065868 has 48 divisors (see below), whose sum is σ = 18666856320. Its totient is φ = 2000019600.

The previous prime is 6600065837. The next prime is 6600065869. The reversal of 6600065868 is 8685600066.

6600065868 is a `hidden beast` number, since 6 + 60 + 0 + 0 + 6 + 586 + 8 = 666.

It is a super-3 number, since 3×6600065868³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (6600065869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2776618 + ... + 2778993.

It is an arithmetic number, because the mean of its divisors is an integer number (388892840).

Almost surely, 2^6600065868 is an apocalyptic number.

It is an amenable number.

6600065868 is an abundant number, since it is smaller than the sum of its proper divisors (12066790452).

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

6600065868 is a wasteful number, since it uses less digits than its factorization.

6600065868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555635 (or 5555627 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 6600065868 is about 81240.7894348646. The cubic root of 6600065868 is about 1875.7836954325.

The spelling of 6600065868 in words is "six billion, six hundred million, sixty-five thousand, eight hundred sixty-eight".