116528431220 has 54 divisors (see below), whose sum is σ = 251624202102. Its totient is φ = 45329622336.

The previous prime is 116528431169. The next prime is 116528431241. The reversal of 116528431220 is 22134825611.

116528431220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 57268318864 + 59260112356 = 239308^2 + 243434^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 56483909 + ... + 56485971.

Almost surely, 2^116528431220 is an apocalyptic number.

116528431220 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 116528431220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125812101051).

116528431220 is an abundant number, since it is smaller than the sum of its proper divisors (135095770882).

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

116528431220 is an frugal number, since it uses more digits than its factorization.

116528431220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4209 (or 2107 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 116528431220 in words is "one hundred sixteen billion, five hundred twenty-eight million, four hundred thirty-one thousand, two hundred twenty".