22440813168 has 160 divisors (see below), whose sum is σ = 61151808256. Its totient is φ = 7082256384.

The previous prime is 22440813149. The next prime is 22440813181. The reversal of 22440813168 is 86131804422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34899855 + ... + 34900497.

Almost surely, 2^22440813168 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 22440813168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30575904128).

22440813168 is an abundant number, since it is smaller than the sum of its proper divisors (38710995088).

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

22440813168 is a wasteful number, since it uses less digits than its factorization.

22440813168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191 (or 1185 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 22440813168 in words is "twenty-two billion, four hundred forty million, eight hundred thirteen thousand, one hundred sixty-eight".