115665540044 has 12 divisors (see below), whose sum is σ = 202630725864. Its totient is φ = 57771046944.

The previous prime is 115665539999. The next prime is 115665540047. The reversal of 115665540044 is 440045566511.

It is a junction number, because it is equal to n+sod(n) for n = 115665539983 and 115665540010.

It is not an unprimeable number, because it can be changed into a prime (115665540047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15426554 + ... + 15434049.

It is an arithmetic number, because the mean of its divisors is an integer number (16885893822).

Almost surely, 2^115665540044 is an apocalyptic number.

It is an amenable number.

115665540044 is a deficient number, since it is larger than the sum of its proper divisors (86965185820).

115665540044 is a wasteful number, since it uses less digits than its factorization.

115665540044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30861544 (or 30861542 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 115665540044 in words is "one hundred fifteen billion, six hundred sixty-five million, five hundred forty thousand, forty-four".