22566387941 has 2 divisors, whose sum is σ = 22566387942. Its totient is φ = 22566387940.

The previous prime is 22566387803. The next prime is 22566387947. The reversal of 22566387941 is 14978366522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16199943841 + 6366444100 = 127279^2 + 79790^2 .

It is a cyclic number.

It is not a de Polignac number, because 22566387941 - 2³⁴ = 5386518757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22566387947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11283193970 + 11283193971.

It is an arithmetic number, because the mean of its divisors is an integer number (11283193971).

Almost surely, 2^22566387941 is an apocalyptic number.

It is an amenable number.

22566387941 is a deficient number, since it is larger than the sum of its proper divisors (1).

22566387941 is an equidigital number, since it uses as much as digits as its factorization.

22566387941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 53.

The spelling of 22566387941 in words is "twenty-two billion, five hundred sixty-six million, three hundred eighty-seven thousand, nine hundred forty-one".