115504550040 has 64 divisors (see below), whose sum is σ = 378014895360. Its totient is φ = 28001102720.

The previous prime is 115504549997. The next prime is 115504550069. The reversal of 115504550040 is 40055405511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43750404 + ... + 43753043.

It is an arithmetic number, because the mean of its divisors is an integer number (5906482740).

Almost surely, 2^115504550040 is an apocalyptic number.

115504550040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115504550040 is an abundant number, since it is smaller than the sum of its proper divisors (262510345320).

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

115504550040 is a wasteful number, since it uses less digits than its factorization.

115504550040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87503472 (or 87503468 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

Adding to 115504550040 its reverse (40055405511), we get a palindrome (155559955551).

The spelling of 115504550040 in words is "one hundred fifteen billion, five hundred four million, five hundred fifty thousand, forty".