20044002004040 has 64 divisors (see below), whose sum is σ = 51623402492160. Its totient is φ = 6861338184960.

The previous prime is 20044002004009. The next prime is 20044002004049. The reversal of 20044002004040 is 4040020044002.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (20044002004049) 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, 56547347 + ... + 56900706.

It is an arithmetic number, because the mean of its divisors is an integer number (806615663940).

Almost surely, 2^{20044002004040} is an apocalyptic number.

20044002004040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20044002004040 is an abundant number, since it is smaller than the sum of its proper divisors (31579400488120).

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

20044002004040 is a wasteful number, since it uses less digits than its factorization.

20044002004040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113448702 (or 113448698 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20044002004040 its reverse (4040020044002), we get a palindrome (24084022048042).

The spelling of 20044002004040 in words is "twenty trillion, forty-four billion, two million, four thousand, forty".