20316005444 has 72 divisors (see below), whose sum is σ = 41723398080. Its totient is φ = 8630193600.

The previous prime is 20316005443. The next prime is 20316005453. The reversal of 20316005444 is 44450061302.

It is not an unprimeable number, because it can be changed into a prime (20316005443) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 13444649 + ... + 13446159.

It is an arithmetic number, because the mean of its divisors is an integer number (579491640).

Almost surely, 2^20316005444 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 20316005444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20861699040).

20316005444 is an abundant number, since it is smaller than the sum of its proper divisors (21407392636).

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

20316005444 is a wasteful number, since it uses less digits than its factorization.

20316005444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089 (or 2080 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 20316005444 its reverse (44450061302), we get a palindrome (64766066746).

The spelling of 20316005444 in words is "twenty billion, three hundred sixteen million, five thousand, four hundred forty-four".