11144233665161 has 2 divisors, whose sum is σ = 11144233665162. Its totient is φ = 11144233665160.

The previous prime is 11144233665151. The next prime is 11144233665217. The reversal of 11144233665161 is 16156633244111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7529843331136 + 3614390334025 = 2744056^2 + 1901155^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11144233665161 is a prime.

It is not a weakly prime, because it can be changed into another prime (11144233665151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5572116832580 + 5572116832581.

It is an arithmetic number, because the mean of its divisors is an integer number (5572116832581).

Almost surely, 2^{11144233665161} is an apocalyptic number.

It is an amenable number.

11144233665161 is a deficient number, since it is larger than the sum of its proper divisors (1).

11144233665161 is an equidigital number, since it uses as much as digits as its factorization.

11144233665161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 44.

The spelling of 11144233665161 in words is "eleven trillion, one hundred forty-four billion, two hundred thirty-three million, six hundred sixty-five thousand, one hundred sixty-one".