11116423111555 has 16 divisors (see below), whose sum is σ = 13390812483840. Its totient is φ = 8859070594528.

The previous prime is 11116423111483. The next prime is 11116423111579. The reversal of 11116423111555 is 55511132461111.

11116423111555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11116423111555 is a prime.

It is a super-2 number, since 2×11116423111555² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55554876 + ... + 55754614.

It is an arithmetic number, because the mean of its divisors is an integer number (836925780240).

Almost surely, 2^{11116423111555} is an apocalyptic number.

11116423111555 is a deficient number, since it is larger than the sum of its proper divisors (2274389372285).

11116423111555 is a wasteful number, since it uses less digits than its factorization.

11116423111555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242330.

The product of its digits is 18000, while the sum is 37.

Adding to 11116423111555 its reverse (55511132461111), we get a palindrome (66627555572666).

The spelling of 11116423111555 in words is "eleven trillion, one hundred sixteen billion, four hundred twenty-three million, one hundred eleven thousand, five hundred fifty-five".