204432142554 has 96 divisors (see below), whose sum is σ = 471289338000. Its totient is φ = 63921457152.

The previous prime is 204432142543. The next prime is 204432142589. The reversal of 204432142554 is 455241234402.

204432142554 is a `hidden beast` number, since 2 + 0 + 4 + 43 + 21 + 42 + 554 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 148936561929 + 55495580625 = 385923^2 + 235575^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13686162 + ... + 13701090.

Almost surely, 2^204432142554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204432142554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235644669000).

204432142554 is an abundant number, since it is smaller than the sum of its proper divisors (266857195446).

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

204432142554 is a wasteful number, since it uses less digits than its factorization.

204432142554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15712 (or 15709 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 204432142554 its reverse (455241234402), we get a palindrome (659673376956).

The spelling of 204432142554 in words is "two hundred four billion, four hundred thirty-two million, one hundred forty-two thousand, five hundred fifty-four".