204011630550 has 576 divisors, whose sum is σ = 717983046144. Its totient is φ = 40302489600.

The previous prime is 204011630549. The next prime is 204011630569. The reversal of 204011630550 is 55036110402.

204011630550 is a `hidden beast` number, since 2 + 0 + 40 + 11 + 63 + 0 + 550 = 666.

204011630550 is digitally balanced in base 2, 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 (19) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 158025405 + ... + 158026695.

It is an arithmetic number, because the mean of its divisors is an integer number (1246498344).

Almost surely, 2^204011630550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204011630550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358991523072).

204011630550 is an abundant number, since it is smaller than the sum of its proper divisors (513971415594).

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

204011630550 is a wasteful number, since it uses less digits than its factorization.

204011630550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573 (or 1565 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 204011630550 its reverse (55036110402), we get a palindrome (259047740952).

The spelling of 204011630550 in words is "two hundred four billion, eleven million, six hundred thirty thousand, five hundred fifty".