22164663500209 has 2 divisors, whose sum is σ = 22164663500210. Its totient is φ = 22164663500208.

The previous prime is 22164663500183. The next prime is 22164663500233. The reversal of 22164663500209 is 90200536646122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20517701944609 + 1646961555600 = 4529647^2 + 1283340^2 .

It is a cyclic number.

It is not a de Polignac number, because 22164663500209 - 2¹¹ = 22164663498161 is a prime.

It is not a weakly prime, because it can be changed into another prime (22164663500809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11082331750104 + 11082331750105.

It is an arithmetic number, because the mean of its divisors is an integer number (11082331750105).

Almost surely, 2^{22164663500209} is an apocalyptic number.

It is an amenable number.

22164663500209 is a deficient number, since it is larger than the sum of its proper divisors (1).

22164663500209 is an equidigital number, since it uses as much as digits as its factorization.

22164663500209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 22164663500209 in words is "twenty-two trillion, one hundred sixty-four billion, six hundred sixty-three million, five hundred thousand, two hundred nine".