115687616 has 42 divisors (see below), whose sum is σ = 252351540. Its totient is φ = 52581760.

The previous prime is 115687603. The next prime is 115687619. The reversal of 115687616 is 616786511.

It is not an unprimeable number, because it can be changed into a prime (115687619) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 275 + ... + 15213.

It is an arithmetic number, because the mean of its divisors is an integer number (6008370).

Almost surely, 2^115687616 is an apocalyptic number.

115687616 is a gapful number since it is divisible by the number (16) 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 115687616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126175770).

115687616 is an abundant number, since it is smaller than the sum of its proper divisors (136663924).

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

115687616 is a wasteful number, since it uses less digits than its factorization.

115687616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14973 (or 14952 counting only the distinct ones).

The product of its digits is 60480, while the sum is 41.

The square root of 115687616 is about 10755.8177745813. The cubic root of 115687616 is about 487.2617162028.

It can be divided in two parts, 1156 and 87616, that multiplied together give a square (101284096 = 10064²).

The spelling of 115687616 in words is "one hundred fifteen million, six hundred eighty-seven thousand, six hundred sixteen".