13533441066 has 64 divisors (see below), whose sum is σ = 30800736000. Its totient is φ = 4403448000.

The previous prime is 13533441043. The next prime is 13533441091. The reversal of 13533441066 is 66014433531.

13533441066 is a `hidden beast` number, since 13 + 533 + 4 + 4 + 106 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13533441066.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 369760 + ... + 404708.

It is an arithmetic number, because the mean of its divisors is an integer number (481261500).

Almost surely, 2^13533441066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13533441066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15400368000).

13533441066 is an abundant number, since it is smaller than the sum of its proper divisors (17267294934).

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

13533441066 is a wasteful number, since it uses less digits than its factorization.

13533441066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35132 (or 35126 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 13533441066 its reverse (66014433531), we get a palindrome (79547874597).

It can be divided in two parts, 135334 and 41066, that added together give a square (176400 = 420²).

The spelling of 13533441066 in words is "thirteen billion, five hundred thirty-three million, four hundred forty-one thousand, sixty-six".