243343232144 has 160 divisors (see below), whose sum is σ = 535480727040. Its totient is φ = 106657689600.

The previous prime is 243343232137. The next prime is 243343232161. The reversal of 243343232144 is 441232343342.

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, 16181909 + ... + 16196939.

It is an arithmetic number, because the mean of its divisors is an integer number (3346754544).

Almost surely, 2^243343232144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243343232144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267740363520).

243343232144 is an abundant number, since it is smaller than the sum of its proper divisors (292137494896).

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

243343232144 is a wasteful number, since it uses less digits than its factorization.

243343232144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15169 (or 15163 counting only the distinct ones).

The product of its digits is 165888, while the sum is 35.

Adding to 243343232144 its reverse (441232343342), we get a palindrome (684575575486).

The spelling of 243343232144 in words is "two hundred forty-three billion, three hundred forty-three million, two hundred thirty-two thousand, one hundred forty-four".