12174166261 has 2 divisors, whose sum is σ = 12174166262. Its totient is φ = 12174166260.

The previous prime is 12174166253. The next prime is 12174166283. The reversal of 12174166261 is 16266147121.

12174166261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12101320036 + 72846225 = 110006^2 + 8535^2 .

It is a cyclic number.

It is not a de Polignac number, because 12174166261 - 2³ = 12174166253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12174166261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12174166201) 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, 6087083130 + 6087083131.

It is an arithmetic number, because the mean of its divisors is an integer number (6087083131).

Almost surely, 2^12174166261 is an apocalyptic number.

It is an amenable number.

12174166261 is a deficient number, since it is larger than the sum of its proper divisors (1).

12174166261 is an equidigital number, since it uses as much as digits as its factorization.

12174166261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The spelling of 12174166261 in words is "twelve billion, one hundred seventy-four million, one hundred sixty-six thousand, two hundred sixty-one".