20555003114400 has 72 divisors (see below), whose sum is σ = 66906535145184. Its totient is φ = 5481334163200.

The previous prime is 20555003114329. The next prime is 20555003114407. The reversal of 20555003114400 is 441130055502.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (20555003114407) 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, 4282289916 + ... + 4282294715.

It is an arithmetic number, because the mean of its divisors is an integer number (929257432572).

Almost surely, 2^{20555003114400} is an apocalyptic number.

20555003114400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20555003114400 is an abundant number, since it is smaller than the sum of its proper divisors (46351532030784).

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

20555003114400 is a wasteful number, since it uses less digits than its factorization.

20555003114400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8564584654 (or 8564584641 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 20555003114400 its reverse (441130055502), we get a palindrome (20996133169902).

The spelling of 20555003114400 in words is "twenty trillion, five hundred fifty-five billion, three million, one hundred fourteen thousand, four hundred".