22306647808 has 72 divisors (see below), whose sum is σ = 46493682480. Its totient is φ = 10667704320.

The previous prime is 22306647697. The next prime is 22306647833. The reversal of 22306647808 is 80874660322.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 780328 + ... + 808408.

It is an arithmetic number, because the mean of its divisors is an integer number (645745590).

Almost surely, 2^22306647808 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 22306647808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23246841240).

22306647808 is an abundant number, since it is smaller than the sum of its proper divisors (24187034672).

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

22306647808 is a wasteful number, since it uses less digits than its factorization.

22306647808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28233 (or 28219 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 46.

The spelling of 22306647808 in words is "twenty-two billion, three hundred six million, six hundred forty-seven thousand, eight hundred eight".