32505201161 has 2 divisors, whose sum is σ = 32505201162. Its totient is φ = 32505201160.

The previous prime is 32505201041. The next prime is 32505201233. The reversal of 32505201161 is 16110250523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27239521936 + 5265679225 = 165044^2 + 72565^2 .

It is a cyclic number.

It is not a de Polignac number, because 32505201161 - 2¹⁸ = 32504939017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32505201161.

It is not a weakly prime, because it can be changed into another prime (32505201361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16252600580 + 16252600581.

It is an arithmetic number, because the mean of its divisors is an integer number (16252600581).

Almost surely, 2^32505201161 is an apocalyptic number.

It is an amenable number.

32505201161 is a deficient number, since it is larger than the sum of its proper divisors (1).

32505201161 is an equidigital number, since it uses as much as digits as its factorization.

32505201161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 32505201161 its reverse (16110250523), we get a palindrome (48615451684).

The spelling of 32505201161 in words is "thirty-two billion, five hundred five million, two hundred one thousand, one hundred sixty-one".