243065504106 has 64 divisors (see below), whose sum is σ = 555485568000. Its totient is φ = 78739779888.

The previous prime is 243065504069. The next prime is 243065504141. The reversal of 243065504106 is 601405560342.

243065504106 is a `hidden beast` number, since 2 + 43 + 0 + 6 + 5 + 504 + 106 = 666.

243065504106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 199065 + ... + 725091.

It is an arithmetic number, because the mean of its divisors is an integer number (8679462000).

Almost surely, 2^243065504106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243065504106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277742784000).

243065504106 is an abundant number, since it is smaller than the sum of its proper divisors (312420063894).

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

243065504106 is a wasteful number, since it uses less digits than its factorization.

243065504106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526280 (or 526274 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 243065504106 in words is "two hundred forty-three billion, sixty-five million, five hundred four thousand, one hundred six".