243325497600 has 1296 divisors, whose sum is σ = 961591787520. Its totient is φ = 58525286400.

The previous prime is 243325497593. The next prime is 243325497601. The reversal of 243325497600 is 6794523342.

243325497600 is a `hidden beast` number, since 2 + 4 + 3 + 32 + 5 + 4 + 9 + 7 + 600 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (243325497601) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1915948737 + ... + 1915948863.

Almost surely, 2^243325497600 is an apocalyptic number.

243325497600 is a gapful number since it is divisible by the number (20) 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 243325497600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480795893760).

243325497600 is an abundant number, since it is smaller than the sum of its proper divisors (718266289920).

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

243325497600 is a wasteful number, since it uses less digits than its factorization.

243325497600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The spelling of 243325497600 in words is "two hundred forty-three billion, three hundred twenty-five million, four hundred ninety-seven thousand, six hundred".