22699543680 has 448 divisors, whose sum is σ = 88778531520. Its totient is φ = 5501675520.

The previous prime is 22699543673. The next prime is 22699543721. The reversal of 22699543680 is 8634599622.

It is a happy number.

22699543680 is a `hidden beast` number, since 2 + 2 + 6 + 99 + 543 + 6 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 5129949 + ... + 5134371.

It is an arithmetic number, because the mean of its divisors is an integer number (198166365).

Almost surely, 2^22699543680 is an apocalyptic number.

22699543680 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 22699543680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44389265760).

22699543680 is an abundant number, since it is smaller than the sum of its proper divisors (66078987840).

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

22699543680 is an equidigital number, since it uses as much as digits as its factorization.

22699543680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4471 (or 4444 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 22699543680 in words is "twenty-two billion, six hundred ninety-nine million, five hundred forty-three thousand, six hundred eighty".