8991982116 has 36 divisors (see below), whose sum is σ = 24478174812. Its totient is φ = 2766763584.

The previous prime is 8991982093. The next prime is 8991982169. The reversal of 8991982116 is 6112891998.

It can be written as a sum of positive squares in 2 ways, for example, as 4230982116 + 4761000000 = 65046^2 + 69000^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9606351 + ... + 9607286.

Almost surely, 2^8991982116 is an apocalyptic number.

It is an amenable number.

8991982116 is an abundant number, since it is smaller than the sum of its proper divisors (15486192696).

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

8991982116 is a wasteful number, since it uses less digits than its factorization.

8991982116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19213660 (or 19213655 counting only the distinct ones).

The product of its digits is 559872, while the sum is 54.

The square root of 8991982116 is about 94826.0624301146. The cubic root of 8991982116 is about 2079.4659406114.

The spelling of 8991982116 in words is "eight billion, nine hundred ninety-one million, nine hundred eighty-two thousand, one hundred sixteen".