204616252056 has 64 divisors (see below), whose sum is σ = 539033558400. Its totient is φ = 64547290368.

The previous prime is 204616252033. The next prime is 204616252073. The reversal of 204616252056 is 650252616402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194916 + ... + 668748.

It is an arithmetic number, because the mean of its divisors is an integer number (8422399350).

Almost surely, 2^204616252056 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 204616252056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269516779200).

204616252056 is an abundant number, since it is smaller than the sum of its proper divisors (334417306344).

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

204616252056 is a wasteful number, since it uses less digits than its factorization.

204616252056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474808 (or 474804 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

Adding to 204616252056 its reverse (650252616402), we get a palindrome (854868868458).

The spelling of 204616252056 in words is "two hundred four billion, six hundred sixteen million, two hundred fifty-two thousand, fifty-six".