204545412500 has 288 divisors, whose sum is σ = 538647024384. Its totient is φ = 66960000000.

The previous prime is 204545412457. The next prime is 204545412517. The reversal of 204545412500 is 5214545402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 73286105 + ... + 73288895.

It is an arithmetic number, because the mean of its divisors is an integer number (1870302168).

Almost surely, 2^204545412500 is an apocalyptic number.

204545412500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204545412500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269323512192).

204545412500 is an abundant number, since it is smaller than the sum of its proper divisors (334101611884).

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

204545412500 is a wasteful number, since it uses less digits than its factorization.

204545412500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885 (or 2863 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 204545412500 its reverse (5214545402), we get a palindrome (209759957902).

The spelling of 204545412500 in words is "two hundred four billion, five hundred forty-five million, four hundred twelve thousand, five hundred".