243455205532 has 144 divisors (see below), whose sum is σ = 547418704896. Its totient is φ = 92701065600.

The previous prime is 243455205529. The next prime is 243455205557. The reversal of 243455205532 is 235502554342.

243455205532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 47 ways as a sum of consecutive naturals, for example, 48659343 + ... + 48664345.

It is an arithmetic number, because the mean of its divisors is an integer number (3801518784).

Almost surely, 2^243455205532 is an apocalyptic number.

243455205532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243455205532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273709352448).

243455205532 is an abundant number, since it is smaller than the sum of its proper divisors (303963499364).

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

243455205532 is a wasteful number, since it uses less digits than its factorization.

243455205532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5360 (or 5347 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 40.

Adding to 243455205532 its reverse (235502554342), we get a palindrome (478957759874).

The spelling of 243455205532 in words is "two hundred forty-three billion, four hundred fifty-five million, two hundred five thousand, five hundred thirty-two".