22006344500 has 96 divisors (see below), whose sum is σ = 54973900800. Its totient is φ = 7538707200.

The previous prime is 22006344487. The next prime is 22006344509. The reversal of 22006344500 is 544360022.

It is a self number, because there is not a number n which added to its sum of digits gives 22006344500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22006344509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6378776 + ... + 6382224.

It is an arithmetic number, because the mean of its divisors is an integer number (572644800).

Almost surely, 2^22006344500 is an apocalyptic number.

22006344500 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 22006344500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27486950400).

22006344500 is an abundant number, since it is smaller than the sum of its proper divisors (32967556300).

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

22006344500 is a wasteful number, since it uses less digits than its factorization.

22006344500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5298 (or 5286 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The spelling of 22006344500 in words is "twenty-two billion, six million, three hundred forty-four thousand, five hundred".