66322097 has 2 divisors, whose sum is σ = 66322098. Its totient is φ = 66322096.

The previous prime is 66322079. The next prime is 66322099. The reversal of 66322097 is 79022366.

It is a happy number.

Together with previous prime (66322079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54700816 + 11621281 = 7396^2 + 3409^2 .

It is a cyclic number.

It is not a de Polignac number, because 66322097 - 2¹⁴ = 66305713 is a prime.

Together with 66322099, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66322099) 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, 33161048 + 33161049.

It is an arithmetic number, because the mean of its divisors is an integer number (33161049).

Almost surely, 2^66322097 is an apocalyptic number.

It is an amenable number.

66322097 is a deficient number, since it is larger than the sum of its proper divisors (1).

66322097 is an equidigital number, since it uses as much as digits as its factorization.

66322097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 66322097 is about 8143.8379772685. The cubic root of 66322097 is about 404.7803452503.

The spelling of 66322097 in words is "sixty-six million, three hundred twenty-two thousand, ninety-seven".