204122524544 has 64 divisors (see below), whose sum is σ = 409140992400. Its totient is φ = 101437747200.

The previous prime is 204122524523. The next prime is 204122524583. The reversal of 204122524544 is 445425221402.

It is a tau number, because it is divible by the number of its divisors (64).

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 7 ways as a sum of consecutive naturals, for example, 17610719 + ... + 17622305.

Almost surely, 2^204122524544 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 204122524544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204570496200).

204122524544 is an abundant number, since it is smaller than the sum of its proper divisors (205018467856).

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

204122524544 is a wasteful number, since it uses less digits than its factorization.

204122524544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12431 (or 12419 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 35.

Adding to 204122524544 its reverse (445425221402), we get a palindrome (649547745946).

The spelling of 204122524544 in words is "two hundred four billion, one hundred twenty-two million, five hundred twenty-four thousand, five hundred forty-four".