5641216169 has 2 divisors, whose sum is σ = 5641216170. Its totient is φ = 5641216168.

The previous prime is 5641216159. The next prime is 5641216177. The reversal of 5641216169 is 9616121465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5494515625 + 146700544 = 74125^2 + 12112^2 .

It is a cyclic number.

It is not a de Polignac number, because 5641216169 - 2⁴ = 5641216153 is a prime.

It is a super-2 number, since 2×5641216169² = 63646639730774073122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5641216159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2820608084 + 2820608085.

It is an arithmetic number, because the mean of its divisors is an integer number (2820608085).

Almost surely, 2^5641216169 is an apocalyptic number.

It is an amenable number.

5641216169 is a deficient number, since it is larger than the sum of its proper divisors (1).

5641216169 is an equidigital number, since it uses as much as digits as its factorization.

5641216169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 41.

The square root of 5641216169 is about 75108.0299901415. The cubic root of 5641216169 is about 1780.1540254083.

The spelling of 5641216169 in words is "five billion, six hundred forty-one million, two hundred sixteen thousand, one hundred sixty-nine".