205933532369 has 2 divisors, whose sum is σ = 205933532370. Its totient is φ = 205933532368.

The previous prime is 205933532359. The next prime is 205933532419. The reversal of 205933532369 is 963235339502.

It is an a-pointer prime, because the next prime (205933532419) can be obtained adding 205933532369 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 176345404225 + 29588128144 = 419935^2 + 172012^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205933532369 is a prime.

It is a super-2 number, since 2×205933532369² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (205933532359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102966766184 + 102966766185.

It is an arithmetic number, because the mean of its divisors is an integer number (102966766185).

Almost surely, 2^205933532369 is an apocalyptic number.

It is an amenable number.

205933532369 is a deficient number, since it is larger than the sum of its proper divisors (1).

205933532369 is an equidigital number, since it uses as much as digits as its factorization.

205933532369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3936600, while the sum is 50.

The spelling of 205933532369 in words is "two hundred five billion, nine hundred thirty-three million, five hundred thirty-two thousand, three hundred sixty-nine".