12116065361 has 2 divisors, whose sum is σ = 12116065362. Its totient is φ = 12116065360.

The previous prime is 12116065309. The next prime is 12116065391. The reversal of 12116065361 is 16356061121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7722894400 + 4393170961 = 87880^2 + 66281^2 .

It is an emirp because it is prime and its reverse (16356061121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12116065361 - 2¹⁴ = 12116048977 is a prime.

It is not a weakly prime, because it can be changed into another prime (12116065391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6058032680 + 6058032681.

It is an arithmetic number, because the mean of its divisors is an integer number (6058032681).

Almost surely, 2^12116065361 is an apocalyptic number.

It is an amenable number.

12116065361 is a deficient number, since it is larger than the sum of its proper divisors (1).

12116065361 is an equidigital number, since it uses as much as digits as its factorization.

12116065361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

Subtracting from 12116065361 its sum of digits (32), we obtain a square (12116065329 = 110073²).

The spelling of 12116065361 in words is "twelve billion, one hundred sixteen million, sixty-five thousand, three hundred sixty-one".