111117166136269 has 2 divisors, whose sum is σ = 111117166136270. Its totient is φ = 111117166136268.

The previous prime is 111117166136189. The next prime is 111117166136279. The reversal of 111117166136269 is 962631661711111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104762799036900 + 6354367099369 = 10235370^2 + 2520787^2 .

It is a cyclic number.

It is not a de Polignac number, because 111117166136269 - 2¹³ = 111117166128077 is a prime.

It is a super-2 number, since 2×111117166136269² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111117166136279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55558583068134 + 55558583068135.

It is an arithmetic number, because the mean of its divisors is an integer number (55558583068135).

Almost surely, 2^{111117166136269} is an apocalyptic number.

It is an amenable number.

111117166136269 is a deficient number, since it is larger than the sum of its proper divisors (1).

111117166136269 is an equidigital number, since it uses as much as digits as its factorization.

111117166136269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 52.

The spelling of 111117166136269 in words is "one hundred eleven trillion, one hundred seventeen billion, one hundred sixty-six million, one hundred thirty-six thousand, two hundred sixty-nine".