115516020 has 96 divisors (see below), whose sum is σ = 345945600. Its totient is φ = 28698624.

The previous prime is 115516001. The next prime is 115516043. The reversal of 115516020 is 20615511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110661 + ... + 111699.

It is an arithmetic number, because the mean of its divisors is an integer number (3603600).

Almost surely, 2^115516020 is an apocalyptic number.

115516020 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 115516020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172972800).

115516020 is an abundant number, since it is smaller than the sum of its proper divisors (230429580).

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

115516020 is a wasteful number, since it uses less digits than its factorization.

115516020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177 (or 1175 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 115516020 is about 10747.8379221125. The cubic root of 115516020 is about 487.0206833875.

It can be divided in two parts, 11551 and 6020, that added together give a palindrome (17571).

The spelling of 115516020 in words is "one hundred fifteen million, five hundred sixteen thousand, twenty".