66010229 has 2 divisors, whose sum is σ = 66010230. Its totient is φ = 66010228.

The previous prime is 66010223. The next prime is 66010261. The reversal of 66010229 is 92201066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49420900 + 16589329 = 7030^2 + 4073^2 .

It is a cyclic number.

It is not a de Polignac number, because 66010229 - 2⁴ = 66010213 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66010198 and 66010207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66010223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33005114 + 33005115.

It is an arithmetic number, because the mean of its divisors is an integer number (33005115).

Almost surely, 2^66010229 is an apocalyptic number.

It is an amenable number.

66010229 is a deficient number, since it is larger than the sum of its proper divisors (1).

66010229 is an equidigital number, since it uses as much as digits as its factorization.

66010229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 66010229 is about 8124.6679316757. The cubic root of 66010229 is about 404.1448786828.

The spelling of 66010229 in words is "sixty-six million, ten thousand, two hundred twenty-nine".