20020140220400 has 60 divisors (see below), whose sum is σ = 48099201662400. Its totient is φ = 8007920432640.

The previous prime is 20020140220373. The next prime is 20020140220459. The reversal of 20020140220400 is 402204102002.

It is a happy number.

20020140220400 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25143596 + ... + 25927604.

It is an arithmetic number, because the mean of its divisors is an integer number (801653361040).

Almost surely, 2^{20020140220400} is an apocalyptic number.

20020140220400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020140220400 is an abundant number, since it is smaller than the sum of its proper divisors (28079061442000).

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

20020140220400 is a wasteful number, since it uses less digits than its factorization.

20020140220400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847866 (or 847855 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20020140220400 its reverse (402204102002), we get a palindrome (20422344322402).

The spelling of 20020140220400 in words is "twenty trillion, twenty billion, one hundred forty million, two hundred twenty thousand, four hundred".