8916533649181 has 2 divisors, whose sum is σ = 8916533649182. Its totient is φ = 8916533649180.

The previous prime is 8916533649169. The next prime is 8916533649197. The reversal of 8916533649181 is 1819463356198.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7589639304900 + 1326894344281 = 2754930^2 + 1151909^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8916533649181 is a prime.

It is a super-2 number, since 2×8916533649181² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8916533649131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4458266824590 + 4458266824591.

It is an arithmetic number, because the mean of its divisors is an integer number (4458266824591).

Almost surely, 2^{8916533649181} is an apocalyptic number.

It is an amenable number.

8916533649181 is a deficient number, since it is larger than the sum of its proper divisors (1).

8916533649181 is an equidigital number, since it uses as much as digits as its factorization.

8916533649181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33592320, while the sum is 64.

The spelling of 8916533649181 in words is "eight trillion, nine hundred sixteen billion, five hundred thirty-three million, six hundred forty-nine thousand, one hundred eighty-one".