22194764447744 has 272 divisors, whose sum is σ = 51917957097600. Its totient is φ = 9291568250880.

The previous prime is 22194764447711. The next prime is 22194764447767. The reversal of 22194764447744 is 44774446749122.

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, 4169594267 + ... + 4169599589.

Almost surely, 2^{22194764447744} 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 22194764447744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25958978548800).

22194764447744 is an abundant number, since it is smaller than the sum of its proper divisors (29723192649856).

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

22194764447744 is an frugal number, since it uses more digits than its factorization.

22194764447744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5572 (or 5542 counting only the distinct ones).

The product of its digits is 303464448, while the sum is 65.

The spelling of 22194764447744 in words is "twenty-two trillion, one hundred ninety-four billion, seven hundred sixty-four million, four hundred forty-seven thousand, seven hundred forty-four".