22503450520320 has 1728 divisors, whose sum is σ = 93628021014528. Its totient is φ = 4504257331200.

The previous prime is 22503450520319. The next prime is 22503450520339. The reversal of 22503450520320 is 2302505430522.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 30953851797 + ... + 30953852523.

Almost surely, 2^{22503450520320} is an apocalyptic number.

22503450520320 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 22503450520320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46814010507264).

22503450520320 is an abundant number, since it is smaller than the sum of its proper divisors (71124570494208).

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

22503450520320 is a wasteful number, since it uses less digits than its factorization.

22503450520320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118 (or 1093 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 33.

Adding to 22503450520320 its reverse (2302505430522), we get a palindrome (24805955950842).

The spelling of 22503450520320 in words is "twenty-two trillion, five hundred three billion, four hundred fifty million, five hundred twenty thousand, three hundred twenty".