22194716672 has 48 divisors (see below), whose sum is σ = 44442756855. Its totient is φ = 11083874304.

The previous prime is 22194716669. The next prime is 22194716683. The reversal of 22194716672 is 27661749122.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 11097358336 + 11097358336 = 105344^2 + 105344^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=105344.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 26967653 + ... + 26968475.

Almost surely, 2^22194716672 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 22194716672

22194716672 is an abundant number, since it is smaller than the sum of its proper divisors (22248040183).

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

22194716672 is an frugal number, since it uses more digits than its factorization.

22194716672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676 (or 825 counting only the distinct ones).

The product of its digits is 508032, while the sum is 47.

The spelling of 22194716672 in words is "twenty-two billion, one hundred ninety-four million, seven hundred sixteen thousand, six hundred seventy-two".