15115615104 has 128 divisors (see below), whose sum is σ = 41152250880. Its totient is φ = 4913653760.

The previous prime is 15115615049. The next prime is 15115615147. The reversal of 15115615104 is 40151651151.

It is a tau number, because it is divible by the number of its divisors (128).

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, 5611582 + ... + 5614274.

It is an arithmetic number, because the mean of its divisors is an integer number (321501960).

Almost surely, 2^15115615104 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 15115615104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20576125440).

15115615104 is an abundant number, since it is smaller than the sum of its proper divisors (26036635776).

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

15115615104 is a wasteful number, since it uses less digits than its factorization.

15115615104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3068 (or 3056 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 30.

The spelling of 15115615104 in words is "fifteen billion, one hundred fifteen million, six hundred fifteen thousand, one hundred four".