115816133678440 has 32 divisors (see below), whose sum is σ = 280631400837480. Its totient is φ = 42762880127232.

The previous prime is 115816133678429. The next prime is 115816133678459. The reversal of 115816133678440 is 44876331618511.

It can be written as a sum of positive squares in 4 ways, for example, as 74240177643076 + 41575956035364 = 8616274^2 + 6447942^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111361666479 + ... + 111361667518.

Almost surely, 2^{115816133678440} is an apocalyptic number.

115816133678440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115816133678440 is an abundant number, since it is smaller than the sum of its proper divisors (164815267159040).

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

115816133678440 is a wasteful number, since it uses less digits than its factorization.

115816133678440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222723334021 (or 222723334017 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 115816133678440 in words is "one hundred fifteen trillion, eight hundred sixteen billion, one hundred thirty-three million, six hundred seventy-eight thousand, four hundred forty".