116515644 has 48 divisors (see below), whose sum is σ = 312361728. Its totient is φ = 33113088.

The previous prime is 116515601. The next prime is 116515667. The reversal of 116515644 is 446515611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12619 + ... + 19805.

It is an arithmetic number, because the mean of its divisors is an integer number (6507536).

Almost surely, 2^116515644 is an apocalyptic number.

116515644 is a gapful number since it is divisible by the number (14) 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 116515644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156180864).

116515644 is an abundant number, since it is smaller than the sum of its proper divisors (195846084).

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

116515644 is a wasteful number, since it uses less digits than its factorization.

116515644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7394 (or 7392 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 116515644 is about 10794.2412424403. The cubic root of 116515644 is about 488.4214702928.

Subtracting from 116515644 its sum of digits (33), we obtain a palindrome (116515611).

The spelling of 116515644 in words is "one hundred sixteen million, five hundred fifteen thousand, six hundred forty-four".