206245210499 has 2 divisors, whose sum is σ = 206245210500. Its totient is φ = 206245210498.

The previous prime is 206245210361. The next prime is 206245210513. The reversal of 206245210499 is 994012542602.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206245210499 is a prime.

It is not a weakly prime, because it can be changed into another prime (206245210799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103122605249 + 103122605250.

It is an arithmetic number, because the mean of its divisors is an integer number (103122605250).

Almost surely, 2^206245210499 is an apocalyptic number.

206245210499 is a deficient number, since it is larger than the sum of its proper divisors (1).

206245210499 is an equidigital number, since it uses as much as digits as its factorization.

206245210499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 206245210499 in words is "two hundred six billion, two hundred forty-five million, two hundred ten thousand, four hundred ninety-nine".