13066318849 has 2 divisors, whose sum is σ = 13066318850. Its totient is φ = 13066318848.

The previous prime is 13066318817. The next prime is 13066318871. The reversal of 13066318849 is 94881366031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10407060225 + 2659258624 = 102015^2 + 51568^2 .

It is a cyclic number.

It is not a de Polignac number, because 13066318849 - 2⁵ = 13066318817 is a prime.

It is not a weakly prime, because it can be changed into another prime (13066318879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6533159424 + 6533159425.

It is an arithmetic number, because the mean of its divisors is an integer number (6533159425).

Almost surely, 2^13066318849 is an apocalyptic number.

It is an amenable number.

13066318849 is a deficient number, since it is larger than the sum of its proper divisors (1).

13066318849 is an equidigital number, since it uses as much as digits as its factorization.

13066318849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 13066318849 in words is "thirteen billion, sixty-six million, three hundred eighteen thousand, eight hundred forty-nine".