12161111167 has 2 divisors, whose sum is σ = 12161111168. Its totient is φ = 12161111166.

The previous prime is 12161111153. The next prime is 12161111201. The reversal of 12161111167 is 76111116121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12161111167 - 2¹¹ = 12161109119 is a prime.

It is a super-2 number, since 2×12161111167² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12161111267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6080555583 + 6080555584.

It is an arithmetic number, because the mean of its divisors is an integer number (6080555584).

Almost surely, 2^12161111167 is an apocalyptic number.

12161111167 is a deficient number, since it is larger than the sum of its proper divisors (1).

12161111167 is an equidigital number, since it uses as much as digits as its factorization.

12161111167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 28.

Adding to 12161111167 its reverse (76111116121), we get a palindrome (88272227288).

The spelling of 12161111167 in words is "twelve billion, one hundred sixty-one million, one hundred eleven thousand, one hundred sixty-seven".