206223557339 has 2 divisors, whose sum is σ = 206223557340. Its totient is φ = 206223557338.

The previous prime is 206223557311. The next prime is 206223557357. The reversal of 206223557339 is 933755322602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206223557339 - 2¹² = 206223553243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206223557293 and 206223557302.

It is not a weakly prime, because it can be changed into another prime (206225557339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103111778669 + 103111778670.

It is an arithmetic number, because the mean of its divisors is an integer number (103111778670).

Almost surely, 2^206223557339 is an apocalyptic number.

206223557339 is a deficient number, since it is larger than the sum of its proper divisors (1).

206223557339 is an equidigital number, since it uses as much as digits as its factorization.

206223557339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2041200, while the sum is 47.

The spelling of 206223557339 in words is "two hundred six billion, two hundred twenty-three million, five hundred fifty-seven thousand, three hundred thirty-nine".