41661811 has 2 divisors, whose sum is σ = 41661812. Its totient is φ = 41661810.

The previous prime is 41661773. The next prime is 41661821. The reversal of 41661811 is 11816614.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 41661811 - 2⁹ = 41661299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41661811.

It is not a weakly prime, because it can be changed into another prime (41661821) 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, 20830905 + 20830906.

It is an arithmetic number, because the mean of its divisors is an integer number (20830906).

Almost surely, 2^41661811 is an apocalyptic number.

41661811 is a deficient number, since it is larger than the sum of its proper divisors (1).

41661811 is an equidigital number, since it uses as much as digits as its factorization.

41661811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 28.

The square root of 41661811 is about 6454.5961143979. The cubic root of 41661811 is about 346.6671697272.

The spelling of 41661811 in words is "forty-one million, six hundred sixty-one thousand, eight hundred eleven".