20043345152 has 72 divisors (see below), whose sum is σ = 40502105280. Its totient is φ = 9898536960.

The previous prime is 20043345139. The next prime is 20043345163. The reversal of 20043345152 is 25154334002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13736999 + ... + 13738457.

It is an arithmetic number, because the mean of its divisors is an integer number (562529240).

Almost surely, 2^20043345152 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 20043345152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20251052640).

20043345152 is an abundant number, since it is smaller than the sum of its proper divisors (20458760128).

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

20043345152 is a wasteful number, since it uses less digits than its factorization.

20043345152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099 (or 2085 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 20043345152 its reverse (25154334002), we get a palindrome (45197679154).

The spelling of 20043345152 in words is "twenty billion, forty-three million, three hundred forty-five thousand, one hundred fifty-two".