20522130304 has 64 divisors (see below), whose sum is σ = 44059911840. Its totient is φ = 9465071616.

The previous prime is 20522130287. The next prime is 20522130311. The reversal of 20522130304 is 40303122502.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2963454 + ... + 2970370.

Almost surely, 2^20522130304 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 20522130304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22029955920).

20522130304 is an abundant number, since it is smaller than the sum of its proper divisors (23537781536).

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

20522130304 is a wasteful number, since it uses less digits than its factorization.

20522130304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8727 (or 8715 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 20522130304 its reverse (40303122502), we get a palindrome (60825252806).

The spelling of 20522130304 in words is "twenty billion, five hundred twenty-two million, one hundred thirty thousand, three hundred four".