204240503322 has 64 divisors (see below), whose sum is σ = 461453391360. Its totient is φ = 66947876352.

The previous prime is 204240503273. The next prime is 204240503339. The reversal of 204240503322 is 223305042402.

It is a happy number.

204240503322 is a `hidden beast` number, since 204 + 2 + 405 + 0 + 33 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1251583 + ... + 1405325.

It is an arithmetic number, because the mean of its divisors is an integer number (7210209240).

Almost surely, 2^204240503322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204240503322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230726695680).

204240503322 is an abundant number, since it is smaller than the sum of its proper divisors (257212888038).

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

204240503322 is a wasteful number, since it uses less digits than its factorization.

204240503322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154164 (or 154158 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

Adding to 204240503322 its reverse (223305042402), we get a palindrome (427545545724).

The spelling of 204240503322 in words is "two hundred four billion, two hundred forty million, five hundred three thousand, three hundred twenty-two".