243606544066 has 16 divisors (see below), whose sum is σ = 374351149368. Its totient is φ = 118823286400.

The previous prime is 243606544063. The next prime is 243606544099. The reversal of 243606544066 is 660445606342.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 202436105041 + 41170439025 = 449929^2 + 202905^2 .

It is not an unprimeable number, because it can be changed into a prime (243606544063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1022256 + ... + 1237828.

Almost surely, 2^243606544066 is an apocalyptic number.

243606544066 is a deficient number, since it is larger than the sum of its proper divisors (130744605302).

243606544066 is a wasteful number, since it uses less digits than its factorization.

243606544066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229397.

The product of its (nonzero) digits is 2488320, while the sum is 46.

The spelling of 243606544066 in words is "two hundred forty-three billion, six hundred six million, five hundred forty-four thousand, sixty-six".