206159239972099 has 32 divisors (see below), whose sum is σ = 222109349068800. Its totient is φ = 190737292505760.

The previous prime is 206159239972057. The next prime is 206159239972157. The reversal of 206159239972099 is 990279932951602.

It is not a de Polignac number, because 206159239972099 - 2²⁵ = 206159206417667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206159239912099) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3586160134 + ... + 3586217620.

It is an arithmetic number, because the mean of its divisors is an integer number (6940917158400).

Almost surely, 2^{206159239972099} is an apocalyptic number.

206159239972099 is a deficient number, since it is larger than the sum of its proper divisors (15950109096701).

206159239972099 is a wasteful number, since it uses less digits than its factorization.

206159239972099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66223.

The product of its (nonzero) digits is 297606960, while the sum is 73.

The spelling of 206159239972099 in words is "two hundred six trillion, one hundred fifty-nine billion, two hundred thirty-nine million, nine hundred seventy-two thousand, ninety-nine".