115863581272516 has 96 divisors (see below), whose sum is σ = 254317401160704. Its totient is φ = 44870221200000.

The previous prime is 115863581272513. The next prime is 115863581272519. The reversal of 115863581272516 is 615272185368511.

It is an interprime number because it is at equal distance from previous prime (115863581272513) and next prime (115863581272519).

It is not an unprimeable number, because it can be changed into a prime (115863581272513) 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, 36432030 + ... + 39484426.

It is an arithmetic number, because the mean of its divisors is an integer number (2649139595424).

Almost surely, 2^{115863581272516} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115863581272516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127158700580352).

115863581272516 is an abundant number, since it is smaller than the sum of its proper divisors (138453819888188).

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

115863581272516 is a wasteful number, since it uses less digits than its factorization.

115863581272516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053161 (or 3053159 counting only the distinct ones).

The product of its digits is 24192000, while the sum is 61.

The spelling of 115863581272516 in words is "one hundred fifteen trillion, eight hundred sixty-three billion, five hundred eighty-one million, two hundred seventy-two thousand, five hundred sixteen".