206611361659 has 2 divisors, whose sum is σ = 206611361660. Its totient is φ = 206611361658.

The previous prime is 206611361549. The next prime is 206611361681. The reversal of 206611361659 is 956163116602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206611361659 - 2¹³ = 206611353467 is a prime.

It is not a weakly prime, because it can be changed into another prime (206611361699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103305680829 + 103305680830.

It is an arithmetic number, because the mean of its divisors is an integer number (103305680830).

Almost surely, 2^206611361659 is an apocalyptic number.

206611361659 is a deficient number, since it is larger than the sum of its proper divisors (1).

206611361659 is an equidigital number, since it uses as much as digits as its factorization.

206611361659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 206611361659 in words is "two hundred six billion, six hundred eleven million, three hundred sixty-one thousand, six hundred fifty-nine".