66044089 has 2 divisors, whose sum is σ = 66044090. Its totient is φ = 66044088.

The previous prime is 66044039. The next prime is 66044113. The reversal of 66044089 is 98044066.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48066489 + 17977600 = 6933^2 + 4240^2 .

It is a cyclic number.

It is not a de Polignac number, because 66044089 - 2⁹ = 66043577 is a prime.

It is not a weakly prime, because it can be changed into another prime (66044009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33022044 + 33022045.

It is an arithmetic number, because the mean of its divisors is an integer number (33022045).

Almost surely, 2^66044089 is an apocalyptic number.

It is an amenable number.

66044089 is a deficient number, since it is larger than the sum of its proper divisors (1).

66044089 is an equidigital number, since it uses as much as digits as its factorization.

66044089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 66044089 is about 8126.7514419970. The cubic root of 66044089 is about 404.2139690176.

The spelling of 66044089 in words is "sixty-six million, forty-four thousand, eighty-nine".