22194016208 has 80 divisors (see below), whose sum is σ = 52966193280. Its totient is φ = 8773083648.

The previous prime is 22194016183. The next prime is 22194016211. The reversal of 22194016208 is 80261049122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2075291 + ... + 2085957.

It is an arithmetic number, because the mean of its divisors is an integer number (662077416).

Almost surely, 2^22194016208 is an apocalyptic number.

22194016208 is a gapful number since it is divisible by the number (28) 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 22194016208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26483096640).

22194016208 is an abundant number, since it is smaller than the sum of its proper divisors (30772177072).

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

22194016208 is a wasteful number, since it uses less digits than its factorization.

22194016208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12124 (or 12118 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The spelling of 22194016208 in words is "twenty-two billion, one hundred ninety-four million, sixteen thousand, two hundred eight".