204153511044 has 48 divisors (see below), whose sum is σ = 552077116416. Its totient is φ = 57508029600.

The previous prime is 204153511039. The next prime is 204153511091. The reversal of 204153511044 is 440115351402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17109522 + ... + 17121449.

It is an arithmetic number, because the mean of its divisors is an integer number (11501606592).

Almost surely, 2^204153511044 is an apocalyptic number.

It is an amenable number.

204153511044 is an abundant number, since it is smaller than the sum of its proper divisors (347923605372).

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

204153511044 is a wasteful number, since it uses less digits than its factorization.

204153511044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34231056 (or 34231054 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 204153511044 its reverse (440115351402), we get a palindrome (644268862446).

The spelling of 204153511044 in words is "two hundred four billion, one hundred fifty-three million, five hundred eleven thousand, forty-four".