204552055320 has 128 divisors (see below), whose sum is σ = 628859427840. Its totient is φ = 53196815360.

The previous prime is 204552055261. The next prime is 204552055381. The reversal of 204552055320 is 23550255402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16756339 + ... + 16768541.

It is an arithmetic number, because the mean of its divisors is an integer number (4912964280).

Almost surely, 2^204552055320 is an apocalyptic number.

204552055320 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 204552055320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314429713920).

204552055320 is an abundant number, since it is smaller than the sum of its proper divisors (424307372520).

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

204552055320 is a wasteful number, since it uses less digits than its factorization.

204552055320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15665 (or 15661 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 33.

The spelling of 204552055320 in words is "two hundred four billion, five hundred fifty-two million, fifty-five thousand, three hundred twenty".