115555105220 has 96 divisors (see below), whose sum is σ = 250597670400. Its totient is φ = 44734892544.

The previous prime is 115555105201. The next prime is 115555105277. The reversal of 115555105220 is 22501555511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79200851 + ... + 79202309.

It is an arithmetic number, because the mean of its divisors is an integer number (2610392400).

Almost surely, 2^115555105220 is an apocalyptic number.

115555105220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115555105220 is an abundant number, since it is smaller than the sum of its proper divisors (135042565180).

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

115555105220 is a wasteful number, since it uses less digits than its factorization.

115555105220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397 (or 2395 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 32.

The spelling of 115555105220 in words is "one hundred fifteen billion, five hundred fifty-five million, one hundred five thousand, two hundred twenty".