243104213550 has 288 divisors, whose sum is σ = 680140468224. Its totient is φ = 56988288000.

The previous prime is 243104213543. The next prime is 243104213567. The reversal of 243104213550 is 55312401342.

243104213550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

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 143 ways as a sum of consecutive naturals, for example, 634736659 + ... + 634737041.

It is an arithmetic number, because the mean of its divisors is an integer number (2361598848).

Almost surely, 2^243104213550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243104213550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340070234112).

243104213550 is an abundant number, since it is smaller than the sum of its proper divisors (437036254674).

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

243104213550 is a wasteful number, since it uses less digits than its factorization.

243104213550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764 (or 722 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 243104213550 its reverse (55312401342), we get a palindrome (298416614892).

It can be divided in two parts, 243104 and 213550, that added together give a palindrome (456654).

The spelling of 243104213550 in words is "two hundred forty-three billion, one hundred four million, two hundred thirteen thousand, five hundred fifty".