206095565776091 has 2 divisors, whose sum is σ = 206095565776092. Its totient is φ = 206095565776090.

The previous prime is 206095565776069. The next prime is 206095565776109. The reversal of 206095565776091 is 190677565590602.

Together with next prime (206095565776109) 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 206095565776091 - 2³⁰ = 206094492034267 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (206095565776031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103047782888045 + 103047782888046.

It is an arithmetic number, because the mean of its divisors is an integer number (103047782888046).

Almost surely, 2^{206095565776091} is an apocalyptic number.

206095565776091 is a deficient number, since it is larger than the sum of its proper divisors (1).

206095565776091 is an equidigital number, since it uses as much as digits as its factorization.

206095565776091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 214326000, while the sum is 68.

The spelling of 206095565776091 in words is "two hundred six trillion, ninety-five billion, five hundred sixty-five million, seven hundred seventy-six thousand, ninety-one".