22043043145 has 4 divisors (see below), whose sum is σ = 26451651780. Its totient is φ = 17634434512.

The previous prime is 22043043137. The next prime is 22043043157. The reversal of 22043043145 is 54134034022.

It is a happy number.

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 5439947536 + 16603095609 = 73756^2 + 128853^2 .

It is a cyclic number.

It is not a de Polignac number, because 22043043145 - 2³ = 22043043137 is a prime.

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, 2204304310 + ... + 2204304319.

It is an arithmetic number, because the mean of its divisors is an integer number (6612912945).

Almost surely, 2^22043043145 is an apocalyptic number.

It is an amenable number.

22043043145 is a deficient number, since it is larger than the sum of its proper divisors (4408608635).

22043043145 is an equidigital number, since it uses as much as digits as its factorization.

22043043145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4408608634.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 22043043145 its reverse (54134034022), we get a palindrome (76177077167).

The spelling of 22043043145 in words is "twenty-two billion, forty-three million, forty-three thousand, one hundred forty-five".