22643666496 has 168 divisors, whose sum is σ = 71347449888. Its totient is φ = 6809088000.

The previous prime is 22643666489. The next prime is 22643666501. The reversal of 22643666496 is 69466634622.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 816376 + ... + 843656.

Almost surely, 2^22643666496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22643666496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35673724944).

22643666496 is an abundant number, since it is smaller than the sum of its proper divisors (48703783392).

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

22643666496 is a wasteful number, since it uses less digits than its factorization.

22643666496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27441 (or 27428 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 54.

The spelling of 22643666496 in words is "twenty-two billion, six hundred forty-three million, six hundred sixty-six thousand, four hundred ninety-six".