8990000668 has 24 divisors (see below), whose sum is σ = 17174304000. Its totient is φ = 4083607920.

The previous prime is 8990000659. The next prime is 8990000699. The reversal of 8990000668 is 8660000998.

It is a happy number.

It is a super-2 number, since 2×8990000668² (a number of 21 digits) contains 22 as substring.

8990000668 is a strobogrammatic number because it is the same when read upside-down.

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, 2196 + ... + 134107.

It is an arithmetic number, because the mean of its divisors is an integer number (715596000).

Almost surely, 2^8990000668 is an apocalyptic number.

It is an amenable number.

8990000668 is a deficient number, since it is larger than the sum of its proper divisors (8184303332).

8990000668 is a wasteful number, since it uses less digits than its factorization.

8990000668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137817 (or 137815 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 8990000668 is about 94815.6140516951. The cubic root of 8990000668 is about 2079.3131876268.

The spelling of 8990000668 in words is "eight billion, nine hundred ninety million, six hundred sixty-eight", and thus it is an aban number.