22744665216 has 320 divisors, whose sum is σ = 83311462080. Its totient is φ = 5998344192.

The previous prime is 22744665191. The next prime is 22744665227. The reversal of 22744665216 is 61256644722.

22744665216 is a `hidden beast` number, since 2 + 27 + 44 + 66 + 521 + 6 = 666.

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, 931435 + ... + 955541.

It is an arithmetic number, because the mean of its divisors is an integer number (260348319).

Almost surely, 2^22744665216 is an apocalyptic number.

22744665216 is a gapful number since it is divisible by the number (26) 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 22744665216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41655731040).

22744665216 is an abundant number, since it is smaller than the sum of its proper divisors (60566796864).

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

22744665216 is a wasteful number, since it uses less digits than its factorization.

22744665216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24153 (or 24132 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The spelling of 22744665216 in words is "twenty-two billion, seven hundred forty-four million, six hundred sixty-five thousand, two hundred sixteen".