22065867829 has 2 divisors, whose sum is σ = 22065867830. Its totient is φ = 22065867828.

The previous prime is 22065867823. The next prime is 22065867833. The reversal of 22065867829 is 92876856022.

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., 12746861604 + 9319006225 = 112902^2 + 96535^2 .

It is a cyclic number.

It is not a de Polignac number, because 22065867829 - 2³ = 22065867821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22065867829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22065867821) 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, 11032933914 + 11032933915.

It is an arithmetic number, because the mean of its divisors is an integer number (11032933915).

Almost surely, 2^22065867829 is an apocalyptic number.

It is an amenable number.

22065867829 is a deficient number, since it is larger than the sum of its proper divisors (1).

22065867829 is an equidigital number, since it uses as much as digits as its factorization.

22065867829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 22065867829 in words is "twenty-two billion, sixty-five million, eight hundred sixty-seven thousand, eight hundred twenty-nine".