204266522420 has 48 divisors (see below), whose sum is σ = 438684316560. Its totient is φ = 79874113536.

The previous prime is 204266522417. The next prime is 204266522459. The reversal of 204266522420 is 24225662402.

It can be written as a sum of positive squares in 8 ways, for example, as 40885648804 + 163380873616 = 202202^2 + 404204^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454085 + ... + 784044.

It is an arithmetic number, because the mean of its divisors is an integer number (9139256595).

Almost surely, 2^204266522420 is an apocalyptic number.

204266522420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204266522420 is an abundant number, since it is smaller than the sum of its proper divisors (234417794140).

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

204266522420 is a wasteful number, since it uses less digits than its factorization.

204266522420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238324 (or 1238322 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

The spelling of 204266522420 in words is "two hundred four billion, two hundred sixty-six million, five hundred twenty-two thousand, four hundred twenty".