15116889305 has 24 divisors (see below), whose sum is σ = 21829606920. Its totient is φ = 10008418560.

The previous prime is 15116889301. The next prime is 15116889329. The reversal of 15116889305 is 50398861151.

It can be written as a sum of positive squares in 4 ways, for example, as 206525641 + 14910363664 = 14371^2 + 122108^2 .

It is not a de Polignac number, because 15116889305 - 2² = 15116889301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15116889305.

It is not an unprimeable number, because it can be changed into a prime (15116889301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1056716 + ... + 1070925.

It is an arithmetic number, because the mean of its divisors is an integer number (909566955).

Almost surely, 2^15116889305 is an apocalyptic number.

It is an amenable number.

15116889305 is a deficient number, since it is larger than the sum of its proper divisors (6712717615).

15116889305 is a wasteful number, since it uses less digits than its factorization.

15116889305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127689 (or 2127682 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 47.

The spelling of 15116889305 in words is "fifteen billion, one hundred sixteen million, eight hundred eighty-nine thousand, three hundred five".