111606238255 has 16 divisors (see below), whose sum is σ = 134487587520. Its totient is φ = 88912309248.

The previous prime is 111606238207. The next prime is 111606238273. The reversal of 111606238255 is 552832606111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111606238255 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1210686 + ... + 1299604.

It is an arithmetic number, because the mean of its divisors is an integer number (8405474220).

Almost surely, 2^111606238255 is an apocalyptic number.

111606238255 is a deficient number, since it is larger than the sum of its proper divisors (22881349265).

111606238255 is an equidigital number, since it uses as much as digits as its factorization.

111606238255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89970.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 111606238255 in words is "one hundred eleven billion, six hundred six million, two hundred thirty-eight thousand, two hundred fifty-five".