204024400056 has 96 divisors (see below), whose sum is σ = 561850445520. Its totient is φ = 66866342400.

The previous prime is 204024400009. The next prime is 204024400057. The reversal of 204024400056 is 650004420402.

204024400056 is a `hidden beast` number, since 204 + 0 + 2 + 4 + 400 + 0 + 56 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204024400057) 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 23 ways as a sum of consecutive naturals, for example, 12961711 + ... + 12977441.

Almost surely, 2^204024400056 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 204024400056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280925222760).

204024400056 is an abundant number, since it is smaller than the sum of its proper divisors (357826045464).

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

204024400056 is a wasteful number, since it uses less digits than its factorization.

204024400056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18757 (or 18750 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 204024400056 its reverse (650004420402), we get a palindrome (854028820458).

The spelling of 204024400056 in words is "two hundred four billion, twenty-four million, four hundred thousand, fifty-six".