20445053214400 has 84 divisors (see below), whose sum is σ = 50318132749360. Its totient is φ = 8176310553600.

The previous prime is 20445053214379. The next prime is 20445053214409. The reversal of 20445053214400 is 441235054402.

It is not an unprimeable number, because it can be changed into a prime (20445053214409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6328285 + ... + 8996515.

Almost surely, 2^{20445053214400} is an apocalyptic number.

20445053214400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20445053214400 is an abundant number, since it is smaller than the sum of its proper divisors (29873079534960).

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

20445053214400 is a wasteful number, since it uses less digits than its factorization.

20445053214400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673042 (or 2673027 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 20445053214400 its reverse (441235054402), we get a palindrome (20886288268802).

The spelling of 20445053214400 in words is "twenty trillion, four hundred forty-five billion, fifty-three million, two hundred fourteen thousand, four hundred".