11165561167 has 2 divisors, whose sum is σ = 11165561168. Its totient is φ = 11165561166.

The previous prime is 11165561129. The next prime is 11165561177. The reversal of 11165561167 is 76116556111.

11165561167 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11165561167 is a prime.

It is a super-3 number, since 3×11165561167³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11165561107) by changing a digit.

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 as a sum of consecutive naturals, namely, 5582780583 + 5582780584.

It is an arithmetic number, because the mean of its divisors is an integer number (5582780584).

Almost surely, 2^11165561167 is an apocalyptic number.

11165561167 is a deficient number, since it is larger than the sum of its proper divisors (1).

11165561167 is an equidigital number, since it uses as much as digits as its factorization.

11165561167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 40.

The spelling of 11165561167 in words is "eleven billion, one hundred sixty-five million, five hundred sixty-one thousand, one hundred sixty-seven".