115545131328 has 224 divisors, whose sum is σ = 338601295872. Its totient is φ = 34481459200.

The previous prime is 115545131323. The next prime is 115545131329. The reversal of 115545131328 is 823131545511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115545131323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67137508 + ... + 67139228.

It is an arithmetic number, because the mean of its divisors is an integer number (1511612928).

Almost surely, 2^115545131328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115545131328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169300647936).

115545131328 is an abundant number, since it is smaller than the sum of its proper divisors (223056164544).

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

115545131328 is a wasteful number, since it uses less digits than its factorization.

115545131328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213 (or 2203 counting only the distinct ones).

The product of its digits is 72000, while the sum is 39.

Adding to 115545131328 its reverse (823131545511), we get a palindrome (938676676839).

The spelling of 115545131328 in words is "one hundred fifteen billion, five hundred forty-five million, one hundred thirty-one thousand, three hundred twenty-eight".