206583875161 has 4 divisors (see below), whose sum is σ = 206670350500. Its totient is φ = 206497399824.

The previous prime is 206583875159. The next prime is 206583875243. The reversal of 206583875161 is 161578385602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28449231561 + 178134643600 = 168669^2 + 422060^2 .

It is a cyclic number.

It is not a de Polignac number, because 206583875161 - 2¹ = 206583875159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206583875099 and 206583875108.

It is not an unprimeable number, because it can be changed into a prime (206583875111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43234086 + ... + 43238863.

It is an arithmetic number, because the mean of its divisors is an integer number (51667587625).

Almost surely, 2^206583875161 is an apocalyptic number.

It is an amenable number.

206583875161 is a deficient number, since it is larger than the sum of its proper divisors (86475339).

206583875161 is an equidigital number, since it uses as much as digits as its factorization.

206583875161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86475338.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 206583875161 in words is "two hundred six billion, five hundred eighty-three million, eight hundred seventy-five thousand, one hundred sixty-one".