22133558549 has 2 divisors, whose sum is σ = 22133558550. Its totient is φ = 22133558548.

The previous prime is 22133558543. The next prime is 22133558569. The reversal of 22133558549 is 94585533122.

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., 22015140625 + 118417924 = 148375^2 + 10882^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22133558549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22133558543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11066779274 + 11066779275.

It is an arithmetic number, because the mean of its divisors is an integer number (11066779275).

Almost surely, 2^22133558549 is an apocalyptic number.

It is an amenable number.

22133558549 is a deficient number, since it is larger than the sum of its proper divisors (1).

22133558549 is an equidigital number, since it uses as much as digits as its factorization.

22133558549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296000, while the sum is 47.

The spelling of 22133558549 in words is "twenty-two billion, one hundred thirty-three million, five hundred fifty-eight thousand, five hundred forty-nine".