13665324066 has 32 divisors (see below), whose sum is σ = 27817862400. Its totient is φ = 4474116480.

The previous prime is 13665324053. The next prime is 13665324091. The reversal of 13665324066 is 66042356631.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237190 + ... + 289118.

It is an arithmetic number, because the mean of its divisors is an integer number (869308200).

Almost surely, 2^13665324066 is an apocalyptic number.

13665324066 is an abundant number, since it is smaller than the sum of its proper divisors (14152538334).

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

13665324066 is a wasteful number, since it uses less digits than its factorization.

13665324066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52714.

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 13665324066 in words is "thirteen billion, six hundred sixty-five million, three hundred twenty-four thousand, sixty-six".