115532243440 has 40 divisors (see below), whose sum is σ = 284413202640. Its totient is φ = 43494491136.

The previous prime is 115532243417. The next prime is 115532243459. The reversal of 115532243440 is 44342235511.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 115532243396 and 115532243405.

It is a congruent number.

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, 42473730 + ... + 42476449.

It is an arithmetic number, because the mean of its divisors is an integer number (7110330066).

Almost surely, 2^115532243440 is an apocalyptic number.

115532243440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115532243440 is an abundant number, since it is smaller than the sum of its proper divisors (168880959200).

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

115532243440 is a wasteful number, since it uses less digits than its factorization.

115532243440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84950209 (or 84950203 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 115532243440 its reverse (44342235511), we get a palindrome (159874478951).

The spelling of 115532243440 in words is "one hundred fifteen billion, five hundred thirty-two million, two hundred forty-three thousand, four hundred forty".