41661311 has 2 divisors, whose sum is σ = 41661312. Its totient is φ = 41661310.

The previous prime is 41661299. The next prime is 41661329. The reversal of 41661311 is 11316614.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 41661311 - 2²² = 37467007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41661331) 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, 20830655 + 20830656.

It is an arithmetic number, because the mean of its divisors is an integer number (20830656).

Almost surely, 2^41661311 is an apocalyptic number.

41661311 is a deficient number, since it is larger than the sum of its proper divisors (1).

41661311 is an equidigital number, since it uses as much as digits as its factorization.

41661311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 23.

The square root of 41661311 is about 6454.5573821913. The cubic root of 41661311 is about 346.6657828914.

Adding to 41661311 its reverse (11316614), we get a palindrome (52977925).

The spelling of 41661311 in words is "forty-one million, six hundred sixty-one thousand, three hundred eleven".