22288159549 has 2 divisors, whose sum is σ = 22288159550. Its totient is φ = 22288159548.

The previous prime is 22288159541. The next prime is 22288159643. The reversal of 22288159549 is 94595188222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21418322500 + 869837049 = 146350^2 + 29493^2 .

It is a cyclic number.

It is not a de Polignac number, because 22288159549 - 2³ = 22288159541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22288159549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22288159541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11144079774 + 11144079775.

It is an arithmetic number, because the mean of its divisors is an integer number (11144079775).

Almost surely, 2^22288159549 is an apocalyptic number.

It is an amenable number.

22288159549 is a deficient number, since it is larger than the sum of its proper divisors (1).

22288159549 is an equidigital number, since it uses as much as digits as its factorization.

22288159549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4147200, while the sum is 55.

The spelling of 22288159549 in words is "twenty-two billion, two hundred eighty-eight million, one hundred fifty-nine thousand, five hundred forty-nine".