204721432152 has 32 divisors (see below), whose sum is σ = 512739268800. Its totient is φ = 68115718944.

The previous prime is 204721432129. The next prime is 204721432207. The reversal of 204721432152 is 251234127402.

It is a happy number.

204721432152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×204721432152² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7784002 + ... + 7810257.

It is an arithmetic number, because the mean of its divisors is an integer number (16023102150).

Almost surely, 2^204721432152 is an apocalyptic number.

It is an amenable number.

204721432152 is an abundant number, since it is smaller than the sum of its proper divisors (308017836648).

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

204721432152 is a wasteful number, since it uses less digits than its factorization.

204721432152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15594815 (or 15594811 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

Adding to 204721432152 its reverse (251234127402), we get a palindrome (455955559554).

The spelling of 204721432152 in words is "two hundred four billion, seven hundred twenty-one million, four hundred thirty-two thousand, one hundred fifty-two".