20002068944 has 80 divisors (see below), whose sum is σ = 45585457344. Its totient is φ = 8382105600.

The previous prime is 20002068943. The next prime is 20002068953. The reversal of 20002068944 is 44986020002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002068943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2010767 + ... + 2020689.

Almost surely, 2^20002068944 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 20002068944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22792728672).

20002068944 is an abundant number, since it is smaller than the sum of its proper divisors (25583388400).

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

20002068944 is a wasteful number, since it uses less digits than its factorization.

20002068944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10836 (or 10830 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

Adding to 20002068944 its reverse (44986020002), we get a palindrome (64988088946).

The spelling of 20002068944 in words is "twenty billion, two million, sixty-eight thousand, nine hundred forty-four".