115521544320 has 2048 divisors, whose sum is σ = 532998144000. Its totient is φ = 20554186752.

The previous prime is 115521544319. The next prime is 115521544351. The reversal of 115521544320 is 23445125511.

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 255 ways as a sum of consecutive naturals, for example, 1297994836 + ... + 1297994924.

It is an arithmetic number, because the mean of its divisors is an integer number (260253000).

Almost surely, 2^115521544320 is an apocalyptic number.

115521544320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115521544320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266499072000).

115521544320 is an abundant number, since it is smaller than the sum of its proper divisors (417476599680).

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

115521544320 is a wasteful number, since it uses less digits than its factorization.

115521544320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 115521544320 its reverse (23445125511), we get a palindrome (138966669831).

The spelling of 115521544320 in words is "one hundred fifteen billion, five hundred twenty-one million, five hundred forty-four thousand, three hundred twenty".