22166183761 has 2 divisors, whose sum is σ = 22166183762. Its totient is φ = 22166183760.

The previous prime is 22166183723. The next prime is 22166183773. The reversal of 22166183761 is 16738166122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16414478161 + 5751705600 = 128119^2 + 75840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22166183761 is a prime.

It is not a weakly prime, because it can be changed into another prime (22166187761) 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, 11083091880 + 11083091881.

It is an arithmetic number, because the mean of its divisors is an integer number (11083091881).

Almost surely, 2^22166183761 is an apocalyptic number.

It is an amenable number.

22166183761 is a deficient number, since it is larger than the sum of its proper divisors (1).

22166183761 is an equidigital number, since it uses as much as digits as its factorization.

22166183761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The spelling of 22166183761 in words is "twenty-two billion, one hundred sixty-six million, one hundred eighty-three thousand, seven hundred sixty-one".