115142865220 has 24 divisors (see below), whose sum is σ = 241925318208. Its totient is φ = 46033279200.

The previous prime is 115142865197. The next prime is 115142865239. The reversal of 115142865220 is 22568241511.

It is a super-2 number, since 2×115142865220² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115142865220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1452096 + ... + 1529335.

It is an arithmetic number, because the mean of its divisors is an integer number (10080221592).

Almost surely, 2^115142865220 is an apocalyptic number.

115142865220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115142865220 is an abundant number, since it is smaller than the sum of its proper divisors (126782452988).

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

115142865220 is a wasteful number, since it uses less digits than its factorization.

115142865220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2983371 (or 2983369 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The spelling of 115142865220 in words is "one hundred fifteen billion, one hundred forty-two million, eight hundred sixty-five thousand, two hundred twenty".