20345032332044 has 192 divisors, whose sum is σ = 43102054195200. Its totient is φ = 8219476242432.

The previous prime is 20345032332041. The next prime is 20345032332047. The reversal of 20345032332044 is 44023323054302.

It is an interprime number because it is at equal distance from previous prime (20345032332041) and next prime (20345032332047).

It is a junction number, because it is equal to n+sod(n) for n = 20345032331995 and 20345032332013.

It is not an unprimeable number, because it can be changed into a prime (20345032332041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5662406312 + ... + 5662409904.

It is an arithmetic number, because the mean of its divisors is an integer number (224489865600).

Almost surely, 2^{20345032332044} 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 20345032332044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21551027097600).

20345032332044 is an abundant number, since it is smaller than the sum of its proper divisors (22757021863156).

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

20345032332044 is a wasteful number, since it uses less digits than its factorization.

20345032332044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4672 (or 4670 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 35.

Adding to 20345032332044 its reverse (44023323054302), we get a palindrome (64368355386346).

The spelling of 20345032332044 in words is "twenty trillion, three hundred forty-five billion, thirty-two million, three hundred thirty-two thousand, forty-four".