204151630544 has 10 divisors (see below), whose sum is σ = 395543784210. Its totient is φ = 102075815264.

The previous prime is 204151630537. The next prime is 204151630561. The reversal of 204151630544 is 445036151402.

It can be written as a sum of positive squares in only one way, i.e., 173705568400 + 30446062144 = 416780^2 + 174488^2 .

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 as a sum of consecutive naturals, namely, 6379738439 + ... + 6379738470.

It is an arithmetic number, because the mean of its divisors is an integer number (39554378421).

Almost surely, 2^204151630544 is an apocalyptic number.

It is an amenable number.

204151630544 is a deficient number, since it is larger than the sum of its proper divisors (191392153666).

204151630544 is a wasteful number, since it uses less digits than its factorization.

204151630544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12759476917 (or 12759476911 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 204151630544 its reverse (445036151402), we get a palindrome (649187781946).

The spelling of 204151630544 in words is "two hundred four billion, one hundred fifty-one million, six hundred thirty thousand, five hundred forty-four".