22543207680 has 288 divisors, whose sum is σ = 87124633344. Its totient is φ = 4849532928.

The previous prime is 22543207639. The next prime is 22543207711. The reversal of 22543207680 is 8670234522.

It is a super-2 number, since 2×22543207680² (a number of 22 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 31 ways as a sum of consecutive naturals, for example, 432294 + ... + 481626.

It is an arithmetic number, because the mean of its divisors is an integer number (302516088).

Almost surely, 2^22543207680 is an apocalyptic number.

22543207680 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 22543207680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43562316672).

22543207680 is an abundant number, since it is smaller than the sum of its proper divisors (64581425664).

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

22543207680 is a wasteful number, since it uses less digits than its factorization.

22543207680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49381 (or 49367 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 22543207680 in words is "twenty-two billion, five hundred forty-three million, two hundred seven thousand, six hundred eighty".