66027061 has 2 divisors, whose sum is σ = 66027062. Its totient is φ = 66027060.

The previous prime is 66027047. The next prime is 66027067. The reversal of 66027061 is 16072066.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65918161 + 108900 = 8119^2 + 330^2 .

It is a cyclic number.

It is not a de Polignac number, because 66027061 - 2⁹ = 66026549 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66027067) 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, 33013530 + 33013531.

It is an arithmetic number, because the mean of its divisors is an integer number (33013531).

Almost surely, 2^66027061 is an apocalyptic number.

It is an amenable number.

66027061 is a deficient number, since it is larger than the sum of its proper divisors (1).

66027061 is an equidigital number, since it uses as much as digits as its factorization.

66027061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 66027061 is about 8125.7037233707. The cubic root of 66027061 is about 404.1792268366.

The spelling of 66027061 in words is "sixty-six million, twenty-seven thousand, sixty-one".