22345305500 has 96 divisors (see below), whose sum is σ = 55843307520. Its totient is φ = 7651713600.

The previous prime is 22345305443. The next prime is 22345305539. The reversal of 22345305500 is 550354322.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3170981 + ... + 3178019.

It is an arithmetic number, because the mean of its divisors is an integer number (581701120).

Almost surely, 2^22345305500 is an apocalyptic number.

22345305500 is a gapful number since it is divisible by the number (20) 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 22345305500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27921653760).

22345305500 is an abundant number, since it is smaller than the sum of its proper divisors (33498002020).

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

22345305500 is a wasteful number, since it uses less digits than its factorization.

22345305500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7972 (or 7960 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 29.

Adding to 22345305500 its reverse (550354322), we get a palindrome (22895659822).

The spelling of 22345305500 in words is "twenty-two billion, three hundred forty-five million, three hundred five thousand, five hundred".