243132205155 has 96 divisors (see below), whose sum is σ = 456075090432. Its totient is φ = 108336936960.

The previous prime is 243132205133. The next prime is 243132205159. The reversal of 243132205155 is 551502231342.

243132205155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243132205155 - 2⁶ = 243132205091 is a prime.

It is a super-2 number, since 2×243132205155² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243132205159) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 44146912 + ... + 44152418.

It is an arithmetic number, because the mean of its divisors is an integer number (4750782192).

Almost surely, 2^243132205155 is an apocalyptic number.

243132205155 is a deficient number, since it is larger than the sum of its proper divisors (212942885277).

243132205155 is a wasteful number, since it uses less digits than its factorization.

243132205155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5757 (or 5696 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 243132205155 its reverse (551502231342), we get a palindrome (794634436497).

The spelling of 243132205155 in words is "two hundred forty-three billion, one hundred thirty-two million, two hundred five thousand, one hundred fifty-five".