204650590896 has 120 divisors (see below), whose sum is σ = 582087267840. Its totient is φ = 67108082688.

The previous prime is 204650590891. The next prime is 204650590909. The reversal of 204650590896 is 698095056402.

It is a happy number.

204650590896 is a `hidden beast` number, since 2 + 0 + 46 + 5 + 0 + 590 + 8 + 9 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (204650590891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4064145 + ... + 4114191.

It is an arithmetic number, because the mean of its divisors is an integer number (4850727232).

Almost surely, 2^204650590896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204650590896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291043633920).

204650590896 is an abundant number, since it is smaller than the sum of its proper divisors (377436676944).

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

204650590896 is a wasteful number, since it uses less digits than its factorization.

204650590896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50523 (or 50514 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 204650590896 in words is "two hundred four billion, six hundred fifty million, five hundred ninety thousand, eight hundred ninety-six".