243155041344 has 112 divisors (see below), whose sum is σ = 715246118400. Its totient is φ = 81004589568.

The previous prime is 243155041289. The next prime is 243155041361. The reversal of 243155041344 is 443140551342.

243155041344 is a `hidden beast` number, since 2 + 4 + 3 + 15 + 504 + 134 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 243155041299 and 243155041308.

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, 2999554 + ... + 3079550.

Almost surely, 2^243155041344 is an apocalyptic number.

243155041344 is a gapful number since it is divisible by the number (24) 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 243155041344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357623059200).

243155041344 is an abundant number, since it is smaller than the sum of its proper divisors (472091077056).

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

243155041344 is a wasteful number, since it uses less digits than its factorization.

243155041344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81777 (or 81761 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 243155041344 its reverse (443140551342), we get a palindrome (686295592686).

The spelling of 243155041344 in words is "two hundred forty-three billion, one hundred fifty-five million, forty-one thousand, three hundred forty-four".