205065500072071 has 2 divisors, whose sum is σ = 205065500072072. Its totient is φ = 205065500072070.

The previous prime is 205065500072057. The next prime is 205065500072099. The reversal of 205065500072071 is 170270005560502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205065500072071 - 2³⁵ = 205031140333703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205065500078071) 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, 102532750036035 + 102532750036036.

It is an arithmetic number, because the mean of its divisors is an integer number (102532750036036).

Almost surely, 2^{205065500072071} is an apocalyptic number.

205065500072071 is a deficient number, since it is larger than the sum of its proper divisors (1).

205065500072071 is an equidigital number, since it uses as much as digits as its factorization.

205065500072071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 147000, while the sum is 40.

The spelling of 205065500072071 in words is "two hundred five trillion, sixty-five billion, five hundred million, seventy-two thousand, seventy-one".