200236310161 has 4 divisors (see below), whose sum is σ = 200237209524. Its totient is φ = 200235410800.

The previous prime is 200236310159. The next prime is 200236310189. The reversal of 200236310161 is 161013632002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 57073210000 + 143163100161 = 238900^2 + 378369^2 .

It is a cyclic number.

It is not a de Polignac number, because 200236310161 - 2¹ = 200236310159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200236319161) 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, 158151 + ... + 652291.

It is an arithmetic number, because the mean of its divisors is an integer number (50059302381).

Almost surely, 2^200236310161 is an apocalyptic number.

It is an amenable number.

200236310161 is a deficient number, since it is larger than the sum of its proper divisors (899363).

200236310161 is an equidigital number, since it uses as much as digits as its factorization.

200236310161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899362.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 200236310161 its reverse (161013632002), we get a palindrome (361249942163).

The spelling of 200236310161 in words is "two hundred billion, two hundred thirty-six million, three hundred ten thousand, one hundred sixty-one".