115555325220 has 48 divisors (see below), whose sum is σ = 359505457920. Its totient is φ = 30814753248.

The previous prime is 115555325219. The next prime is 115555325243. The reversal of 115555325220 is 22523555511.

115555325220 is a `hidden beast` number, since 1 + 1 + 5 + 55 + 532 + 52 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 106995132 + ... + 106996211.

It is an arithmetic number, because the mean of its divisors is an integer number (7489697040).

Almost surely, 2^115555325220 is an apocalyptic number.

115555325220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115555325220 is an abundant number, since it is smaller than the sum of its proper divisors (243950132700).

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

115555325220 is a wasteful number, since it uses less digits than its factorization.

115555325220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213991361 (or 213991353 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 115555325220 in words is "one hundred fifteen billion, five hundred fifty-five million, three hundred twenty-five thousand, two hundred twenty".