206606060489 has 2 divisors, whose sum is σ = 206606060490. Its totient is φ = 206606060488.

The previous prime is 206606060483. The next prime is 206606060501. The reversal of 206606060489 is 984060606602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205292360464 + 1313700025 = 453092^2 + 36245^2 .

It is a cyclic number.

It is not a de Polignac number, because 206606060489 - 2⁸ = 206606060233 is a prime.

It is not a weakly prime, because it can be changed into another prime (206606060483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103303030244 + 103303030245.

It is an arithmetic number, because the mean of its divisors is an integer number (103303030245).

Almost surely, 2^206606060489 is an apocalyptic number.

It is an amenable number.

206606060489 is a deficient number, since it is larger than the sum of its proper divisors (1).

206606060489 is an equidigital number, since it uses as much as digits as its factorization.

206606060489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 206606060489 in words is "two hundred six billion, six hundred six million, sixty thousand, four hundred eighty-nine".