12108983816 has 16 divisors (see below), whose sum is σ = 22705685100. Its totient is φ = 6054134464.

The previous prime is 12108983801. The next prime is 12108983819. The reversal of 12108983816 is 61838980121.

It can be written as a sum of positive squares in 2 ways, for example, as 6749279716 + 5359704100 = 82154^2 + 73210^2 .

It is a super-2 number, since 2×12108983816² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12108983819) 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 3 ways as a sum of consecutive naturals, for example, 148346 + ... + 214998.

Almost surely, 2^12108983816 is an apocalyptic number.

It is an amenable number.

12108983816 is a deficient number, since it is larger than the sum of its proper divisors (10596701284).

12108983816 is a wasteful number, since it uses less digits than its factorization.

12108983816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89368 (or 89364 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 47.

The spelling of 12108983816 in words is "twelve billion, one hundred eight million, nine hundred eighty-three thousand, eight hundred sixteen".