15115411120 has 80 divisors (see below), whose sum is σ = 35587097280. Its totient is φ = 5970010112.

The previous prime is 15115411079. The next prime is 15115411133. The reversal of 15115411120 is 2111451151.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 15115411091 and 15115411100.

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, 9732264 + ... + 9733816.

It is an arithmetic number, because the mean of its divisors is an integer number (444838716).

Almost surely, 2^15115411120 is an apocalyptic number.

15115411120 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 15115411120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17793548640).

15115411120 is an abundant number, since it is smaller than the sum of its proper divisors (20471686160).

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

15115411120 is a wasteful number, since it uses less digits than its factorization.

15115411120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3022 (or 3016 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 22.

Adding to 15115411120 its reverse (2111451151), we get a palindrome (17226862271).

The spelling of 15115411120 in words is "fifteen billion, one hundred fifteen million, four hundred eleven thousand, one hundred twenty".