41916661 has 2 divisors, whose sum is σ = 41916662. Its totient is φ = 41916660.

The previous prime is 41916653. The next prime is 41916691. The reversal of 41916661 is 16661914.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38564100 + 3352561 = 6210^2 + 1831^2 .

It is a cyclic number.

It is not a de Polignac number, because 41916661 - 2³ = 41916653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41916691) 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, 20958330 + 20958331.

It is an arithmetic number, because the mean of its divisors is an integer number (20958331).

Almost surely, 2^41916661 is an apocalyptic number.

It is an amenable number.

41916661 is a deficient number, since it is larger than the sum of its proper divisors (1).

41916661 is an equidigital number, since it uses as much as digits as its factorization.

41916661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 34.

The square root of 41916661 is about 6474.3077622245. The cubic root of 41916661 is about 347.3726006775.

The spelling of 41916661 in words is "forty-one million, nine hundred sixteen thousand, six hundred sixty-one".