204505426600 has 96 divisors (see below), whose sum is σ = 489184672320. Its totient is φ = 79477009920.

The previous prime is 204505426577. The next prime is 204505426663. The reversal of 204505426600 is 6624505402.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 873669 + ... + 1082731.

It is an arithmetic number, because the mean of its divisors is an integer number (5095673670).

Almost surely, 2^204505426600 is an apocalyptic number.

204505426600 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 204505426600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244592336160).

204505426600 is an abundant number, since it is smaller than the sum of its proper divisors (284679245720).

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

204505426600 is a wasteful number, since it uses less digits than its factorization.

204505426600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209219 (or 209210 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 204505426600 in words is "two hundred four billion, five hundred five million, four hundred twenty-six thousand, six hundred".