205463120600069 has 2 divisors, whose sum is σ = 205463120600070. Its totient is φ = 205463120600068.

The previous prime is 205463120599993. The next prime is 205463120600077. The reversal of 205463120600069 is 960006021364502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205453894997569 + 9225602500 = 14333663^2 + 96050^2 .

It is a cyclic number.

It is not a de Polignac number, because 205463120600069 - 2¹⁶ = 205463120534533 is a prime.

It is a super-2 number, since 2×205463120600069² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205463120600669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102731560300034 + 102731560300035.

It is an arithmetic number, because the mean of its divisors is an integer number (102731560300035).

Almost surely, 2^{205463120600069} is an apocalyptic number.

It is an amenable number.

205463120600069 is a deficient number, since it is larger than the sum of its proper divisors (1).

205463120600069 is an equidigital number, since it uses as much as digits as its factorization.

205463120600069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 205463120600069 in words is "two hundred five trillion, four hundred sixty-three billion, one hundred twenty million, six hundred thousand, sixty-nine".