20446222316648 has 16 divisors (see below), whose sum is σ = 38336867408580. Its totient is φ = 10223057674368.

The previous prime is 20446222316609. The next prime is 20446222316677. The reversal of 20446222316648 is 84661322264402.

It can be written as a sum of positive squares in 2 ways, for example, as 20257902770884 + 188319545764 = 4500878^2 + 433958^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20446222316596 and 20446222316605.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5036861 + ... + 8140172.

Almost surely, 2^{20446222316648} is an apocalyptic number.

It is an amenable number.

20446222316648 is a deficient number, since it is larger than the sum of its proper divisors (17890645091932).

20446222316648 is a wasteful number, since it uses less digits than its factorization.

20446222316648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13370996 (or 13370992 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 50.

The spelling of 20446222316648 in words is "twenty trillion, four hundred forty-six billion, two hundred twenty-two million, three hundred sixteen thousand, six hundred forty-eight".