22518224208 has 200 divisors, whose sum is σ = 69685057728. Its totient is φ = 6995248128.

The previous prime is 22518224173. The next prime is 22518224213. The reversal of 22518224208 is 80242281522.

It is a happy number.

22518224208 is a `hidden beast` number, since 225 + 1 + 8 + 2 + 2 + 420 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2264335 + ... + 2274257.

Almost surely, 2^22518224208 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 22518224208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34842528864).

22518224208 is an abundant number, since it is smaller than the sum of its proper divisors (47166833520).

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

22518224208 is a wasteful number, since it uses less digits than its factorization.

22518224208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10063 (or 10048 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 36.

The spelling of 22518224208 in words is "twenty-two billion, five hundred eighteen million, two hundred twenty-four thousand, two hundred eight".