20224426646 has 8 divisors (see below), whose sum is σ = 30414627360. Its totient is φ = 10086217528.

The previous prime is 20224426639. The next prime is 20224426657. The reversal of 20224426646 is 64662442202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 12996926 + ... + 12998481.

It is an arithmetic number, because the mean of its divisors is an integer number (3801828420).

Almost surely, 2^20224426646 is an apocalyptic number.

20224426646 is a deficient number, since it is larger than the sum of its proper divisors (10190200714).

20224426646 is a wasteful number, since it uses less digits than its factorization.

20224426646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25995798.

The product of its (nonzero) digits is 221184, while the sum is 38.

Adding to 20224426646 its reverse (64662442202), we get a palindrome (84886868848).

The spelling of 20224426646 in words is "twenty billion, two hundred twenty-four million, four hundred twenty-six thousand, six hundred forty-six".