111560949559 has 4 divisors (see below), whose sum is σ = 111825940360. Its totient is φ = 111295958760.

The previous prime is 111560949553. The next prime is 111560949569. The reversal of 111560949559 is 955949065111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111560949559 - 2²⁵ = 111527395127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111560949553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132494769 + ... + 132495610.

It is an arithmetic number, because the mean of its divisors is an integer number (27956485090).

Almost surely, 2^111560949559 is an apocalyptic number.

111560949559 is a deficient number, since it is larger than the sum of its proper divisors (264990801).

111560949559 is an equidigital number, since it uses as much as digits as its factorization.

111560949559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264990800.

The product of its (nonzero) digits is 2187000, while the sum is 55.

The spelling of 111560949559 in words is "one hundred eleven billion, five hundred sixty million, nine hundred forty-nine thousand, five hundred fifty-nine".