115668778372 has 12 divisors (see below), whose sum is σ = 231337556800. Its totient is φ = 49572333576.

The previous prime is 115668778367. The next prime is 115668778373. The reversal of 115668778372 is 273877866511.

115668778372 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 115668778372.

It is not an unprimeable number, because it can be changed into a prime (115668778373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2065513872 + ... + 2065513927.

Almost surely, 2^115668778372 is an apocalyptic number.

It is an amenable number.

115668778372 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

115668778372 is a wasteful number, since it uses less digits than its factorization.

115668778372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4131027810 (or 4131027808 counting only the distinct ones).

The product of its digits is 23708160, while the sum is 61.

The spelling of 115668778372 in words is "one hundred fifteen billion, six hundred sixty-eight million, seven hundred seventy-eight thousand, three hundred seventy-two".