115220888188 has 48 divisors (see below), whose sum is σ = 231397838784. Its totient is φ = 49175723520.

The previous prime is 115220888171. The next prime is 115220888201. The reversal of 115220888188 is 881888022511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18352906 + ... + 18359182.

It is an arithmetic number, because the mean of its divisors is an integer number (4820788308).

Almost surely, 2^115220888188 is an apocalyptic number.

It is an amenable number.

115220888188 is an abundant number, since it is smaller than the sum of its proper divisors (116176950596).

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

115220888188 is a wasteful number, since it uses less digits than its factorization.

115220888188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8902 (or 8900 counting only the distinct ones).

The product of its (nonzero) digits is 655360, while the sum is 52.

The spelling of 115220888188 in words is "one hundred fifteen billion, two hundred twenty million, eight hundred eighty-eight thousand, one hundred eighty-eight".