205044266348531 has 2 divisors, whose sum is σ = 205044266348532. Its totient is φ = 205044266348530.

The previous prime is 205044266348477. The next prime is 205044266348567. The reversal of 205044266348531 is 135843662440502.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205044266348531 is a prime.

It is a super-2 number, since 2×205044266348531² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (205044266348431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102522133174265 + 102522133174266.

It is an arithmetic number, because the mean of its divisors is an integer number (102522133174266).

Almost surely, 2^{205044266348531} is an apocalyptic number.

205044266348531 is a deficient number, since it is larger than the sum of its proper divisors (1).

205044266348531 is an equidigital number, since it uses as much as digits as its factorization.

205044266348531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16588800, while the sum is 53.

The spelling of 205044266348531 in words is "two hundred five trillion, forty-four billion, two hundred sixty-six million, three hundred forty-eight thousand, five hundred thirty-one".