22441163155445 has 4 divisors (see below), whose sum is σ = 26929395786540. Its totient is φ = 17952930524352.

The previous prime is 22441163155399. The next prime is 22441163155451. The reversal of 22441163155445 is 54455136114422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16088137044004 + 6353026111441 = 4011002^2 + 2520521^2 .

It is a cyclic number.

It is not a de Polignac number, because 22441163155445 - 2¹⁴ = 22441163139061 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22441163155445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2244116315540 + ... + 2244116315549.

It is an arithmetic number, because the mean of its divisors is an integer number (6732348946635).

Almost surely, 2^{22441163155445} is an apocalyptic number.

It is an amenable number.

22441163155445 is a deficient number, since it is larger than the sum of its proper divisors (4488232631095).

22441163155445 is an equidigital number, since it uses as much as digits as its factorization.

22441163155445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4488232631094.

The product of its digits is 2304000, while the sum is 47.

Adding to 22441163155445 its reverse (54455136114422), we get a palindrome (76896299269867).

The spelling of 22441163155445 in words is "twenty-two trillion, four hundred forty-one billion, one hundred sixty-three million, one hundred fifty-five thousand, four hundred forty-five".