206260598857 has 2 divisors, whose sum is σ = 206260598858. Its totient is φ = 206260598856.

The previous prime is 206260598849. The next prime is 206260598923. The reversal of 206260598857 is 758895062602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141327876096 + 64932722761 = 375936^2 + 254819^2 .

It is a cyclic number.

It is not a de Polignac number, because 206260598857 - 2³ = 206260598849 is a prime.

It is not a weakly prime, because it can be changed into another prime (206260598057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103130299428 + 103130299429.

It is an arithmetic number, because the mean of its divisors is an integer number (103130299429).

Almost surely, 2^206260598857 is an apocalyptic number.

It is an amenable number.

206260598857 is a deficient number, since it is larger than the sum of its proper divisors (1).

206260598857 is an equidigital number, since it uses as much as digits as its factorization.

206260598857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14515200, while the sum is 58.

The spelling of 206260598857 in words is "two hundred six billion, two hundred sixty million, five hundred ninety-eight thousand, eight hundred fifty-seven".