2331606161 has 2 divisors, whose sum is σ = 2331606162. Its totient is φ = 2331606160.

The previous prime is 2331606149. The next prime is 2331606239. The reversal of 2331606161 is 1616061332.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1710649600 + 620956561 = 41360^2 + 24919^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2331606161 is a prime.

It is not a weakly prime, because it can be changed into another prime (2331606461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1165803080 + 1165803081.

It is an arithmetic number, because the mean of its divisors is an integer number (1165803081).

Almost surely, 2^2331606161 is an apocalyptic number.

It is an amenable number.

2331606161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2331606161 is an equidigital number, since it uses as much as digits as its factorization.

2331606161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 2331606161 is about 48286.7079122195. The cubic root of 2331606161 is about 1326.0250591113.

Adding to 2331606161 its reverse (1616061332), we get a palindrome (3947667493).

The spelling of 2331606161 in words is "two billion, three hundred thirty-one million, six hundred six thousand, one hundred sixty-one".