20422322256 has 80 divisors (see below), whose sum is σ = 60396741504. Its totient is φ = 5825052672.

The previous prime is 20422322251. The next prime is 20422322257. The reversal of 20422322256 is 65222322402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20422322251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148000 + ... + 250496.

Almost surely, 2^20422322256 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 20422322256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30198370752).

20422322256 is an abundant number, since it is smaller than the sum of its proper divisors (39974419248).

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

20422322256 is a wasteful number, since it uses less digits than its factorization.

20422322256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103108 (or 103102 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 20422322256 its reverse (65222322402), we get a palindrome (85644644658).

The spelling of 20422322256 in words is "twenty billion, four hundred twenty-two million, three hundred twenty-two thousand, two hundred fifty-six".