22065561173 has 2 divisors, whose sum is σ = 22065561174. Its totient is φ = 22065561172.

The previous prime is 22065561163. The next prime is 22065561191. The reversal of 22065561173 is 37116556022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12964782769 + 9100778404 = 113863^2 + 95398^2 .

It is a cyclic number.

It is not a de Polignac number, because 22065561173 - 2¹⁴ = 22065544789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22065561163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11032780586 + 11032780587.

It is an arithmetic number, because the mean of its divisors is an integer number (11032780587).

Almost surely, 2^22065561173 is an apocalyptic number.

It is an amenable number.

22065561173 is a deficient number, since it is larger than the sum of its proper divisors (1).

22065561173 is an equidigital number, since it uses as much as digits as its factorization.

22065561173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 22065561173 in words is "twenty-two billion, sixty-five million, five hundred sixty-one thousand, one hundred seventy-three".