20333300404400 has 30 divisors (see below), whose sum is σ = 48850754222532. Its totient is φ = 8133320161600.

The previous prime is 20333300404379. The next prime is 20333300404451. The reversal of 20333300404400 is 440400333302.

It is a self number, because there is not a number n which added to its sum of digits gives 20333300404400.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25416625106 + ... + 25416625905.

Almost surely, 2^{20333300404400} is an apocalyptic number.

20333300404400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20333300404400 is an abundant number, since it is smaller than the sum of its proper divisors (28517453818132).

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

20333300404400 is a wasteful number, since it uses less digits than its factorization.

20333300404400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50833251029 (or 50833251018 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 26.

Adding to 20333300404400 its reverse (440400333302), we get a palindrome (20773700737702).

The spelling of 20333300404400 in words is "twenty trillion, three hundred thirty-three billion, three hundred million, four hundred four thousand, four hundred".