66610002233 has 2 divisors, whose sum is σ = 66610002234. Its totient is φ = 66610002232.

The previous prime is 66610002209. The next prime is 66610002307. The reversal of 66610002233 is 33220001666.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57318584569 + 9291417664 = 239413^2 + 96392^2 .

It is a cyclic number.

It is not a de Polignac number, because 66610002233 - 2¹² = 66609998137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66610002196 and 66610002205.

It is not a weakly prime, because it can be changed into another prime (66610004233) 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, 33305001116 + 33305001117.

It is an arithmetic number, because the mean of its divisors is an integer number (33305001117).

Almost surely, 2^66610002233 is an apocalyptic number.

It is an amenable number.

66610002233 is a deficient number, since it is larger than the sum of its proper divisors (1).

66610002233 is an equidigital number, since it uses as much as digits as its factorization.

66610002233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 66610002233 its reverse (33220001666), we get a palindrome (99830003899).

The spelling of 66610002233 in words is "sixty-six billion, six hundred ten million, two thousand, two hundred thirty-three".