66202049 has 2 divisors, whose sum is σ = 66202050. Its totient is φ = 66202048.

The previous prime is 66202013. The next prime is 66202091. The reversal of 66202049 is 94020266.

66202049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36966400 + 29235649 = 6080^2 + 5407^2 .

It is a cyclic number.

It is not a de Polignac number, because 66202049 - 2¹² = 66197953 is a prime.

It is a super-2 number, since 2×66202049² = 8765422583596802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66202009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33101024 + 33101025.

It is an arithmetic number, because the mean of its divisors is an integer number (33101025).

Almost surely, 2^66202049 is an apocalyptic number.

It is an amenable number.

66202049 is a deficient number, since it is larger than the sum of its proper divisors (1).

66202049 is an equidigital number, since it uses as much as digits as its factorization.

66202049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 66202049 is about 8136.4641583430. The cubic root of 66202049 is about 404.5359700890.

The spelling of 66202049 in words is "sixty-six million, two hundred two thousand, forty-nine".