115620559980 has 24 divisors (see below), whose sum is σ = 323737568112. Its totient is φ = 30832149312.

The previous prime is 115620559979. The next prime is 115620559997. The reversal of 115620559980 is 89955026511.

It is a super-2 number, since 2×115620559980² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 963504607 + ... + 963504726.

It is an arithmetic number, because the mean of its divisors is an integer number (13489065338).

Almost surely, 2^115620559980 is an apocalyptic number.

115620559980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115620559980 is an abundant number, since it is smaller than the sum of its proper divisors (208117008132).

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

115620559980 is a wasteful number, since it uses less digits than its factorization.

115620559980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927009345 (or 1927009343 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 51.

The spelling of 115620559980 in words is "one hundred fifteen billion, six hundred twenty million, five hundred fifty-nine thousand, nine hundred eighty".