115812697266 has 168 divisors, whose sum is σ = 306649509264. Its totient is φ = 32689001520.

The previous prime is 115812697241. The next prime is 115812697267. The reversal of 115812697266 is 662796218511.

It is a happy number.

115812697266 is a `hidden beast` number, since 11 + 581 + 26 + 9 + 7 + 26 + 6 = 666.

115812697266 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (115812697267) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 5919921 + ... + 5939451.

It is an arithmetic number, because the mean of its divisors is an integer number (1825294698).

Almost surely, 2^115812697266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115812697266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153324754632).

115812697266 is an abundant number, since it is smaller than the sum of its proper divisors (190836811998).

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

115812697266 is an equidigital number, since it uses as much as digits as its factorization.

115812697266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19648 (or 19626 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The spelling of 115812697266 in words is "one hundred fifteen billion, eight hundred twelve million, six hundred ninety-seven thousand, two hundred sixty-six".