206820072959 has 2 divisors, whose sum is σ = 206820072960. Its totient is φ = 206820072958.

The previous prime is 206820072947. The next prime is 206820073021. The reversal of 206820072959 is 959270028602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206820072959 - 2⁸ = 206820072703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206820032959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103410036479 + 103410036480.

It is an arithmetic number, because the mean of its divisors is an integer number (103410036480).

Almost surely, 2^206820072959 is an apocalyptic number.

206820072959 is a deficient number, since it is larger than the sum of its proper divisors (1).

206820072959 is an equidigital number, since it uses as much as digits as its factorization.

206820072959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 206820072959 in words is "two hundred six billion, eight hundred twenty million, seventy-two thousand, nine hundred fifty-nine".