205055245121179 has 2 divisors, whose sum is σ = 205055245121180. Its totient is φ = 205055245121178.

The previous prime is 205055245121101. The next prime is 205055245121197. The reversal of 205055245121179 is 971121542550502.

Together with next prime (205055245121197) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205055245121179 - 2¹³ = 205055245112987 is a prime.

It is not a weakly prime, because it can be changed into another prime (205055245121579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102527622560589 + 102527622560590.

It is an arithmetic number, because the mean of its divisors is an integer number (102527622560590).

Almost surely, 2^{205055245121179} is an apocalyptic number.

205055245121179 is a deficient number, since it is larger than the sum of its proper divisors (1).

205055245121179 is an equidigital number, since it uses as much as digits as its factorization.

205055245121179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260000, while the sum is 49.

The spelling of 205055245121179 in words is "two hundred five trillion, fifty-five billion, two hundred forty-five million, one hundred twenty-one thousand, one hundred seventy-nine".