22866494149 has 2 divisors, whose sum is σ = 22866494150. Its totient is φ = 22866494148.

The previous prime is 22866494137. The next prime is 22866494153. The reversal of 22866494149 is 94149466822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20537756100 + 2328738049 = 143310^2 + 48257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22866494149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22866494149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22866494159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11433247074 + 11433247075.

It is an arithmetic number, because the mean of its divisors is an integer number (11433247075).

Almost surely, 2^22866494149 is an apocalyptic number.

It is an amenable number.

22866494149 is a deficient number, since it is larger than the sum of its proper divisors (1).

22866494149 is an equidigital number, since it uses as much as digits as its factorization.

22866494149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5971968, while the sum is 55.

The spelling of 22866494149 in words is "twenty-two billion, eight hundred sixty-six million, four hundred ninety-four thousand, one hundred forty-nine".