204151630543 has 24 divisors (see below), whose sum is σ = 238348508688. Its totient is φ = 174349840896.

The previous prime is 204151630537. The next prime is 204151630561. The reversal of 204151630543 is 345036151402.

It is a de Polignac number, because none of the positive numbers 2^k-204151630543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204151630499 and 204151630508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204151630843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25128480 + ... + 25136602.

It is an arithmetic number, because the mean of its divisors is an integer number (9931187862).

Almost surely, 2^204151630543 is an apocalyptic number.

204151630543 is a deficient number, since it is larger than the sum of its proper divisors (34196878145).

204151630543 is a wasteful number, since it uses less digits than its factorization.

204151630543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9943 (or 9936 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 204151630543 its reverse (345036151402), we get a palindrome (549187781945).

The spelling of 204151630543 in words is "two hundred four billion, one hundred fifty-one million, six hundred thirty thousand, five hundred forty-three".