111606011611 has 8 divisors (see below), whose sum is σ = 116363589120. Its totient is φ = 106909040448.

The previous prime is 111606011593. The next prime is 111606011707. The reversal of 111606011611 is 116110606111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111606011611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111606018611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15147826 + ... + 15155191.

It is an arithmetic number, because the mean of its divisors is an integer number (14545448640).

Almost surely, 2^111606011611 is an apocalyptic number.

111606011611 is a deficient number, since it is larger than the sum of its proper divisors (4757577509).

111606011611 is a wasteful number, since it uses less digits than its factorization.

111606011611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30303173.

The product of its (nonzero) digits is 216, while the sum is 25.

Adding to 111606011611 its reverse (116110606111), we get a palindrome (227716617722).

The spelling of 111606011611 in words is "one hundred eleven billion, six hundred six million, eleven thousand, six hundred eleven".