22003066320 has 80 divisors (see below), whose sum is σ = 68365207680. Its totient is φ = 5854090752.

The previous prime is 22003066307. The next prime is 22003066339. The reversal of 22003066320 is 2366030022.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 942 + ... + 209778.

It is an arithmetic number, because the mean of its divisors is an integer number (854565096).

Almost surely, 2^22003066320 is an apocalyptic number.

22003066320 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 22003066320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34182603840).

22003066320 is an abundant number, since it is smaller than the sum of its proper divisors (46362141360).

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

22003066320 is a wasteful number, since it uses less digits than its factorization.

22003066320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209292 (or 209286 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 22003066320 its reverse (2366030022), we get a palindrome (24369096342).

The spelling of 22003066320 in words is "twenty-two billion, three million, sixty-six thousand, three hundred twenty".