20045324104 has 256 divisors, whose sum is σ = 46103904000. Its totient is φ = 8082063360.

The previous prime is 20045324093. The next prime is 20045324149. The reversal of 20045324104 is 40142354002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 183902002 + ... + 183902110.

It is an arithmetic number, because the mean of its divisors is an integer number (180093375).

Almost surely, 2^20045324104 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 20045324104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23051952000).

20045324104 is an abundant number, since it is smaller than the sum of its proper divisors (26058579896).

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

20045324104 is a wasteful number, since it uses less digits than its factorization.

20045324104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20045324104 its reverse (40142354002), we get a palindrome (60187678106).

The spelling of 20045324104 in words is "twenty billion, forty-five million, three hundred twenty-four thousand, one hundred four".