115912657866 has 32 divisors (see below), whose sum is σ = 238944456576. Its totient is φ = 37468872000.

The previous prime is 115912657813. The next prime is 115912657873. The reversal of 115912657866 is 668756219511.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2204305 + ... + 2256276.

It is an arithmetic number, because the mean of its divisors is an integer number (7467014268).

Almost surely, 2^115912657866 is an apocalyptic number.

115912657866 is an abundant number, since it is smaller than the sum of its proper divisors (123031798710).

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

115912657866 is a wasteful number, since it uses less digits than its factorization.

115912657866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4460718.

The product of its digits is 5443200, while the sum is 57.

The spelling of 115912657866 in words is "one hundred fifteen billion, nine hundred twelve million, six hundred fifty-seven thousand, eight hundred sixty-six".