11115260161 has 16 divisors (see below), whose sum is σ = 11844347904. Its totient is φ = 10394751744.

The previous prime is 11115260153. The next prime is 11115260179. The reversal of 11115260161 is 16106251111.

It is a cyclic number.

It is not a de Polignac number, because 11115260161 - 2³ = 11115260153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11115261161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1800466 + ... + 1806628.

It is an arithmetic number, because the mean of its divisors is an integer number (740271744).

Almost surely, 2^11115260161 is an apocalyptic number.

It is an amenable number.

11115260161 is a deficient number, since it is larger than the sum of its proper divisors (729087743).

11115260161 is a wasteful number, since it uses less digits than its factorization.

11115260161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6840.

The product of its (nonzero) digits is 360, while the sum is 25.

The spelling of 11115260161 in words is "eleven billion, one hundred fifteen million, two hundred sixty thousand, one hundred sixty-one".