206158429979 has 2 divisors, whose sum is σ = 206158429980. Its totient is φ = 206158429978.

The previous prime is 206158429951. The next prime is 206158430017. The reversal of 206158429979 is 979924851602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206158429979 - 2¹⁶ = 206158364443 is a prime.

It is not a weakly prime, because it can be changed into another prime (206158429679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103079214989 + 103079214990.

It is an arithmetic number, because the mean of its divisors is an integer number (103079214990).

Almost surely, 2^206158429979 is an apocalyptic number.

206158429979 is a deficient number, since it is larger than the sum of its proper divisors (1).

206158429979 is an equidigital number, since it uses as much as digits as its factorization.

206158429979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19595520, while the sum is 62.

The spelling of 206158429979 in words is "two hundred six billion, one hundred fifty-eight million, four hundred twenty-nine thousand, nine hundred seventy-nine".