204153635344 has 20 divisors (see below), whose sum is σ = 416365967440. Its totient is φ = 96704353440.

The previous prime is 204153635317. The next prime is 204153635359. The reversal of 204153635344 is 443536351402.

It is a junction number, because it is equal to n+sod(n) for n = 204153635297 and 204153635306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335778702 + ... + 335779309.

It is an arithmetic number, because the mean of its divisors is an integer number (20818298372).

Almost surely, 2^204153635344 is an apocalyptic number.

It is an amenable number.

204153635344 is an abundant number, since it is smaller than the sum of its proper divisors (212212332096).

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

204153635344 is a wasteful number, since it uses less digits than its factorization.

204153635344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671558038 (or 671558032 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 40.

Adding to 204153635344 its reverse (443536351402), we get a palindrome (647689986746).

The spelling of 204153635344 in words is "two hundred four billion, one hundred fifty-three million, six hundred thirty-five thousand, three hundred forty-four".