66086441 has 2 divisors, whose sum is σ = 66086442. Its totient is φ = 66086440.

The previous prime is 66086437. The next prime is 66086479. The reversal of 66086441 is 14468066.

66086441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57820816 + 8265625 = 7604^2 + 2875^2 .

It is a cyclic number.

It is not a de Polignac number, because 66086441 - 2² = 66086437 is a prime.

It is not a weakly prime, because it can be changed into another prime (66086411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33043220 + 33043221.

It is an arithmetic number, because the mean of its divisors is an integer number (33043221).

Almost surely, 2^66086441 is an apocalyptic number.

It is an amenable number.

66086441 is a deficient number, since it is larger than the sum of its proper divisors (1).

66086441 is an equidigital number, since it uses as much as digits as its factorization.

66086441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 66086441 is about 8129.3567396197. The cubic root of 66086441 is about 404.3003537959.

The spelling of 66086441 in words is "sixty-six million, eighty-six thousand, four hundred forty-one".