41671166261 has 2 divisors, whose sum is σ = 41671166262. Its totient is φ = 41671166260.

The previous prime is 41671166219. The next prime is 41671166281. The reversal of 41671166261 is 16266117614.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27654027025 + 14017139236 = 166295^2 + 118394^2 .

It is a cyclic number.

It is not a de Polignac number, because 41671166261 - 2⁶ = 41671166197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41671166281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20835583130 + 20835583131.

It is an arithmetic number, because the mean of its divisors is an integer number (20835583131).

Almost surely, 2^41671166261 is an apocalyptic number.

It is an amenable number.

41671166261 is a deficient number, since it is larger than the sum of its proper divisors (1).

41671166261 is an equidigital number, since it uses as much as digits as its factorization.

41671166261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 41.

The spelling of 41671166261 in words is "forty-one billion, six hundred seventy-one million, one hundred sixty-six thousand, two hundred sixty-one".