6636898968 has 64 divisors (see below), whose sum is σ = 19960608000. Its totient is φ = 1796452992.

The previous prime is 6636898963. The next prime is 6636898973. The reversal of 6636898968 is 8698986366.

It is an interprime number because it is at equal distance from previous prime (6636898963) and next prime (6636898973).

It is a super-2 number, since 2×6636898968² = 88096855822878930048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6636898963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1036423 + ... + 1042806.

It is an arithmetic number, because the mean of its divisors is an integer number (311884500).

Almost surely, 2^6636898968 is an apocalyptic number.

It is an amenable number.

6636898968 is an abundant number, since it is smaller than the sum of its proper divisors (13323709032).

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

6636898968 is a wasteful number, since it uses less digits than its factorization.

6636898968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079264 (or 2079260 counting only the distinct ones).

The product of its digits is 161243136, while the sum is 69.

The square root of 6636898968 is about 81467.1649684706. The cubic root of 6636898968 is about 1879.2666303595.

The spelling of 6636898968 in words is "six billion, six hundred thirty-six million, eight hundred ninety-eight thousand, nine hundred sixty-eight".