33366144209 has 2 divisors, whose sum is σ = 33366144210. Its totient is φ = 33366144208.

The previous prime is 33366144187. The next prime is 33366144247. The reversal of 33366144209 is 90244166333.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29832198400 + 3533945809 = 172720^2 + 59447^2 .

It is a cyclic number.

It is not a de Polignac number, because 33366144209 - 2¹² = 33366140113 is a prime.

It is a super-2 number, since 2×33366144209² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33366144289) 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, 16683072104 + 16683072105.

It is an arithmetic number, because the mean of its divisors is an integer number (16683072105).

Almost surely, 2^33366144209 is an apocalyptic number.

It is an amenable number.

33366144209 is a deficient number, since it is larger than the sum of its proper divisors (1).

33366144209 is an equidigital number, since it uses as much as digits as its factorization.

33366144209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 41.

The spelling of 33366144209 in words is "thirty-three billion, three hundred sixty-six million, one hundred forty-four thousand, two hundred nine".