115665516552 has 128 divisors (see below), whose sum is σ = 304722000000. Its totient is φ = 36536887296.

The previous prime is 115665516529. The next prime is 115665516553. The reversal of 115665516552 is 255615566511.

It is not an unprimeable number, because it can be changed into a prime (115665516553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8110324 + ... + 8124572.

It is an arithmetic number, because the mean of its divisors is an integer number (2380640625).

Almost surely, 2^115665516552 is an apocalyptic number.

115665516552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115665516552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152361000000).

115665516552 is an abundant number, since it is smaller than the sum of its proper divisors (189056483448).

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

115665516552 is a wasteful number, since it uses less digits than its factorization.

115665516552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14503 (or 14499 counting only the distinct ones).

The product of its digits is 1350000, while the sum is 48.

The spelling of 115665516552 in words is "one hundred fifteen billion, six hundred sixty-five million, five hundred sixteen thousand, five hundred fifty-two".