22099094784 has 864 divisors, whose sum is σ = 80120221440. Its totient is φ = 5956042752.

The previous prime is 22099094749. The next prime is 22099094789. The reversal of 22099094784 is 48749099022.

It is a tau number, because it is divible by the number of its divisors (864).

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

It is a self number, because there is not a number n which added to its sum of digits gives 22099094784.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22099094789) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 597272814 + ... + 597272850.

Almost surely, 2^22099094784 is an apocalyptic number.

22099094784 is a gapful number since it is divisible by the number (24) 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 22099094784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40060110720).

22099094784 is an abundant number, since it is smaller than the sum of its proper divisors (58021126656).

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

22099094784 is a wasteful number, since it uses less digits than its factorization.

22099094784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 22099094784 in words is "twenty-two billion, ninety-nine million, ninety-four thousand, seven hundred eighty-four".