22025234544 has 80 divisors (see below), whose sum is σ = 60606620928. Its totient is φ = 6868458496.

The previous prime is 22025234507. The next prime is 22025234573. The reversal of 22025234544 is 44543252022.

It is a super-2 number, since 2×22025234544² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55459 + ... + 217085.

Almost surely, 2^22025234544 is an apocalyptic number.

22025234544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22025234544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30303310464).

22025234544 is an abundant number, since it is smaller than the sum of its proper divisors (38581386384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22025234544 is a wasteful number, since it uses less digits than its factorization.

22025234544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161822 (or 161816 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 33.

Adding to 22025234544 its reverse (44543252022), we get a palindrome (66568486566).

The spelling of 22025234544 in words is "twenty-two billion, twenty-five million, two hundred thirty-four thousand, five hundred forty-four".