22554215149 has 2 divisors, whose sum is σ = 22554215150. Its totient is φ = 22554215148.

The previous prime is 22554215141. The next prime is 22554215179. The reversal of 22554215149 is 94151245522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20095047049 + 2459168100 = 141757^2 + 49590^2 .

It is a cyclic number.

It is not a de Polignac number, because 22554215149 - 2³ = 22554215141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22554215141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11277107574 + 11277107575.

It is an arithmetic number, because the mean of its divisors is an integer number (11277107575).

Almost surely, 2^22554215149 is an apocalyptic number.

It is an amenable number.

22554215149 is a deficient number, since it is larger than the sum of its proper divisors (1).

22554215149 is an equidigital number, since it uses as much as digits as its factorization.

22554215149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144000, while the sum is 40.

The spelling of 22554215149 in words is "twenty-two billion, five hundred fifty-four million, two hundred fifteen thousand, one hundred forty-nine".