206160661561607 has 2 divisors, whose sum is σ = 206160661561608. Its totient is φ = 206160661561606.

The previous prime is 206160661561579. The next prime is 206160661561667. The reversal of 206160661561607 is 706165166061602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206160661561607 - 2¹² = 206160661557511 is a prime.

It is a super-3 number, since 3×206160661561607³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206160661561667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103080330780803 + 103080330780804.

It is an arithmetic number, because the mean of its divisors is an integer number (103080330780804).

Almost surely, 2^{206160661561607} is an apocalyptic number.

206160661561607 is a deficient number, since it is larger than the sum of its proper divisors (1).

206160661561607 is an equidigital number, since it uses as much as digits as its factorization.

206160661561607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 206160661561607 in words is "two hundred six trillion, one hundred sixty billion, six hundred sixty-one million, five hundred sixty-one thousand, six hundred seven".