204225520245020 has 24 divisors (see below), whose sum is σ = 428873875684800. Its totient is φ = 81690154160832.

The previous prime is 204225520244987. The next prime is 204225520245041. The reversal of 204225520245020 is 20542025522402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43724786 + ... + 48169574.

It is an arithmetic number, because the mean of its divisors is an integer number (17869744820200).

Almost surely, 2^{204225520245020} is an apocalyptic number.

204225520245020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204225520245020 is an abundant number, since it is smaller than the sum of its proper divisors (224648355439780).

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

204225520245020 is a wasteful number, since it uses less digits than its factorization.

204225520245020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6742157 (or 6742155 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 35.

Adding to 204225520245020 its reverse (20542025522402), we get a palindrome (224767545767422).

The spelling of 204225520245020 in words is "two hundred four trillion, two hundred twenty-five billion, five hundred twenty million, two hundred forty-five thousand, twenty".