2216161369 has 2 divisors, whose sum is σ = 2216161370. Its totient is φ = 2216161368.

The previous prime is 2216161357. The next prime is 2216161439. The reversal of 2216161369 is 9631616122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2032206400 + 183954969 = 45080^2 + 13563^2 .

It is a cyclic number.

It is not a de Polignac number, because 2216161369 - 2⁹ = 2216160857 is a prime.

It is a super-2 number, since 2×2216161369² = 9822742426895908322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2216161169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108080684 + 1108080685.

It is an arithmetic number, because the mean of its divisors is an integer number (1108080685).

Almost surely, 2^2216161369 is an apocalyptic number.

It is an amenable number.

2216161369 is a deficient number, since it is larger than the sum of its proper divisors (1).

2216161369 is an equidigital number, since it uses as much as digits as its factorization.

2216161369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 37.

The square root of 2216161369 is about 47076.1231305213. The cubic root of 2216161369 is about 1303.7684282806.

The spelling of 2216161369 in words is "two billion, two hundred sixteen million, one hundred sixty-one thousand, three hundred sixty-nine".