66103229 has 2 divisors, whose sum is σ = 66103230. Its totient is φ = 66103228.

The previous prime is 66103189. The next prime is 66103231. The reversal of 66103229 is 92230166.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65577604 + 525625 = 8098^2 + 725^2 .

It is a cyclic number.

It is not a de Polignac number, because 66103229 - 2¹² = 66099133 is a prime.

Together with 66103231, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66103729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33051614 + 33051615.

It is an arithmetic number, because the mean of its divisors is an integer number (33051615).

Almost surely, 2^66103229 is an apocalyptic number.

It is an amenable number.

66103229 is a deficient number, since it is larger than the sum of its proper divisors (1).

66103229 is an equidigital number, since it uses as much as digits as its factorization.

66103229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 66103229 is about 8130.3892280751. The cubic root of 66103229 is about 404.3345858289.

The spelling of 66103229 in words is "sixty-six million, one hundred three thousand, two hundred twenty-nine".