12164446278073 has 2 divisors, whose sum is σ = 12164446278074. Its totient is φ = 12164446278072.

The previous prime is 12164446278043. The next prime is 12164446278143. The reversal of 12164446278073 is 37087264446121.

It is a happy number.

12164446278073 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., 7831333596304 + 4333112681769 = 2798452^2 + 2081613^2 .

It is a cyclic number.

It is not a de Polignac number, because 12164446278073 - 2⁵ = 12164446278041 is a prime.

It is not a weakly prime, because it can be changed into another prime (12164446278043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6082223139036 + 6082223139037.

It is an arithmetic number, because the mean of its divisors is an integer number (6082223139037).

Almost surely, 2^{12164446278073} is an apocalyptic number.

It is an amenable number.

12164446278073 is a deficient number, since it is larger than the sum of its proper divisors (1).

12164446278073 is an equidigital number, since it uses as much as digits as its factorization.

12164446278073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10838016, while the sum is 55.

The spelling of 12164446278073 in words is "twelve trillion, one hundred sixty-four billion, four hundred forty-six million, two hundred seventy-eight thousand, seventy-three".