115966881758 has 16 divisors (see below), whose sum is σ = 214092705120. Its totient is φ = 45877008096.

The previous prime is 115966881757. The next prime is 115966881781. The reversal of 115966881758 is 857188669511.

It is a junction number, because it is equal to n+sod(n) for n = 115966881694 and 115966881703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115966881757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318590153 + ... + 318590516.

It is an arithmetic number, because the mean of its divisors is an integer number (13380794070).

Almost surely, 2^115966881758 is an apocalyptic number.

115966881758 is a deficient number, since it is larger than the sum of its proper divisors (98125823362).

115966881758 is a wasteful number, since it uses less digits than its factorization.

115966881758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637180691.

The product of its digits is 29030400, while the sum is 65.

The spelling of 115966881758 in words is "one hundred fifteen billion, nine hundred sixty-six million, eight hundred eighty-one thousand, seven hundred fifty-eight".