411666666121 has 2 divisors, whose sum is σ = 411666666122. Its totient is φ = 411666666120.

The previous prime is 411666666067. The next prime is 411666666163. The reversal of 411666666121 is 121666666114.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 408147210496 + 3519455625 = 638864^2 + 59325^2 .

It is a cyclic number.

It is not a de Polignac number, because 411666666121 - 2¹³ = 411666657929 is a prime.

It is not a weakly prime, because it can be changed into another prime (411666666221) 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, 205833333060 + 205833333061.

It is an arithmetic number, because the mean of its divisors is an integer number (205833333061).

Almost surely, 2^411666666121 is an apocalyptic number.

It is an amenable number.

411666666121 is a deficient number, since it is larger than the sum of its proper divisors (1).

411666666121 is an equidigital number, since it uses as much as digits as its factorization.

411666666121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 46.

The spelling of 411666666121 in words is "four hundred eleven billion, six hundred sixty-six million, six hundred sixty-six thousand, one hundred twenty-one".