325116161124221 has 2 divisors, whose sum is σ = 325116161124222. Its totient is φ = 325116161124220.

The previous prime is 325116161124151. The next prime is 325116161124229. The reversal of 325116161124221 is 122421161611523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176885877024025 + 148230284100196 = 13299845^2 + 12174986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325116161124221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325116161124229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162558080562110 + 162558080562111.

It is an arithmetic number, because the mean of its divisors is an integer number (162558080562111).

Almost surely, 2^{325116161124221} is an apocalyptic number.

It is an amenable number.

325116161124221 is a deficient number, since it is larger than the sum of its proper divisors (1).

325116161124221 is an equidigital number, since it uses as much as digits as its factorization.

325116161124221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 38.

The spelling of 325116161124221 in words is "three hundred twenty-five trillion, one hundred sixteen billion, one hundred sixty-one million, one hundred twenty-four thousand, two hundred twenty-one".