22766612712161 has 2 divisors, whose sum is σ = 22766612712162. Its totient is φ = 22766612712160.

The previous prime is 22766612712119. The next prime is 22766612712169. The reversal of 22766612712161 is 16121721666722.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19353840490000 + 3412772222161 = 4399300^2 + 1847369^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22766612712161 is a prime.

It is not a weakly prime, because it can be changed into another prime (22766612712169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11383306356080 + 11383306356081.

It is an arithmetic number, because the mean of its divisors is an integer number (11383306356081).

Almost surely, 2^{22766612712161} is an apocalyptic number.

It is an amenable number.

22766612712161 is a deficient number, since it is larger than the sum of its proper divisors (1).

22766612712161 is an equidigital number, since it uses as much as digits as its factorization.

22766612712161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 50.

The spelling of 22766612712161 in words is "twenty-two trillion, seven hundred sixty-six billion, six hundred twelve million, seven hundred twelve thousand, one hundred sixty-one".