8916648161 has 2 divisors, whose sum is σ = 8916648162. Its totient is φ = 8916648160.

The previous prime is 8916648131. The next prime is 8916648163. The reversal of 8916648161 is 1618466198.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8545893136 + 370755025 = 92444^2 + 19255^2 .

It is a cyclic number.

It is not a de Polignac number, because 8916648161 - 2¹⁰ = 8916647137 is a prime.

It is a super-2 number, since 2×8916648161² (a number of 21 digits) contains 22 as substring.

Together with 8916648163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8916648163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4458324080 + 4458324081.

It is an arithmetic number, because the mean of its divisors is an integer number (4458324081).

Almost surely, 2^8916648161 is an apocalyptic number.

It is an amenable number.

8916648161 is a deficient number, since it is larger than the sum of its proper divisors (1).

8916648161 is an equidigital number, since it uses as much as digits as its factorization.

8916648161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 50.

The square root of 8916648161 is about 94428.0051732536. The cubic root of 8916648161 is about 2073.6424592903.

The spelling of 8916648161 in words is "eight billion, nine hundred sixteen million, six hundred forty-eight thousand, one hundred sixty-one".