22025044643 has 12 divisors (see below), whose sum is σ = 25624322640. Its totient is φ = 18876139632.

The previous prime is 22025044633. The next prime is 22025044661. The reversal of 22025044643 is 34644052022.

It is a happy number.

It is not a de Polignac number, because 22025044643 - 2⁸ = 22025044387 is a prime.

It is a super-2 number, since 2×22025044643² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22025044633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 417530 + ... + 467312.

It is an arithmetic number, because the mean of its divisors is an integer number (2135360220).

Almost surely, 2^22025044643 is an apocalyptic number.

22025044643 is a deficient number, since it is larger than the sum of its proper divisors (3599277997).

22025044643 is an equidigital number, since it uses as much as digits as its factorization.

22025044643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58826 (or 58819 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 22025044643 its reverse (34644052022), we get a palindrome (56669096665).

The spelling of 22025044643 in words is "twenty-two billion, twenty-five million, forty-four thousand, six hundred forty-three".