15115560161 has 16 divisors (see below), whose sum is σ = 17073982464. Its totient is φ = 13286856384.

The previous prime is 15115560139. The next prime is 15115560167. The reversal of 15115560161 is 16106551151.

It is a de Polignac number, because none of the positive numbers 2^k-15115560161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15115560167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311705 + ... + 356918.

It is an arithmetic number, because the mean of its divisors is an integer number (1067123904).

Almost surely, 2^15115560161 is an apocalyptic number.

It is an amenable number.

15115560161 is a deficient number, since it is larger than the sum of its proper divisors (1958422303).

15115560161 is a wasteful number, since it uses less digits than its factorization.

15115560161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668720.

The product of its (nonzero) digits is 4500, while the sum is 32.

The spelling of 15115560161 in words is "fifteen billion, one hundred fifteen million, five hundred sixty thousand, one hundred sixty-one".