15116513440 has 96 divisors (see below), whose sum is σ = 41389657344. Its totient is φ = 5109780480.

The previous prime is 15116513437. The next prime is 15116513473. The reversal of 15116513440 is 4431561151.

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, 15529 + ... + 174568.

It is an arithmetic number, because the mean of its divisors is an integer number (431142264).

Almost surely, 2^15116513440 is an apocalyptic number.

15116513440 is a gapful number since it is divisible by the number (10) 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 15116513440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20694828672).

15116513440 is an abundant number, since it is smaller than the sum of its proper divisors (26273143904).

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

15116513440 is a wasteful number, since it uses less digits than its factorization.

15116513440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190190 (or 190182 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 15116513440 in words is "fifteen billion, one hundred sixteen million, five hundred thirteen thousand, four hundred forty".