338666572813 has 2 divisors, whose sum is σ = 338666572814. Its totient is φ = 338666572812.

The previous prime is 338666572781. The next prime is 338666572841. The reversal of 338666572813 is 318275666833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 327731060484 + 10935512329 = 572478^2 + 104573^2 .

It is a cyclic number.

It is not a de Polignac number, because 338666572813 - 2⁵ = 338666572781 is a prime.

It is a super-2 number, since 2×338666572813² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338666576813) 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, 169333286406 + 169333286407.

It is an arithmetic number, because the mean of its divisors is an integer number (169333286407).

Almost surely, 2^338666572813 is an apocalyptic number.

It is an amenable number.

338666572813 is a deficient number, since it is larger than the sum of its proper divisors (1).

338666572813 is an equidigital number, since it uses as much as digits as its factorization.

338666572813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26127360, while the sum is 58.

The spelling of 338666572813 in words is "three hundred thirty-eight billion, six hundred sixty-six million, five hundred seventy-two thousand, eight hundred thirteen".