204368512220 has 24 divisors (see below), whose sum is σ = 429192591408. Its totient is φ = 81743840000.

The previous prime is 204368512207. The next prime is 204368512223. The reversal of 204368512220 is 22215863402.

It is a happy number.

204368512220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204368512223) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 274340 + ... + 695700.

It is an arithmetic number, because the mean of its divisors is an integer number (17883024642).

Almost surely, 2^204368512220 is an apocalyptic number.

204368512220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204368512220 is an abundant number, since it is smaller than the sum of its proper divisors (224824079188).

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

204368512220 is a wasteful number, since it uses less digits than its factorization.

204368512220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445621 (or 445619 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 204368512220 in words is "two hundred four billion, three hundred sixty-eight million, five hundred twelve thousand, two hundred twenty".