13200066 has 48 divisors (see below), whose sum is σ = 31468320. Its totient is φ = 3965760.

The previous prime is 13200001. The next prime is 13200101. The reversal of 13200066 is 66000231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32070 + ... + 32478.

It is an arithmetic number, because the mean of its divisors is an integer number (655590).

Almost surely, 2^13200066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13200066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15734160).

13200066 is an abundant number, since it is smaller than the sum of its proper divisors (18268254).

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

13200066 is a wasteful number, since it uses less digits than its factorization.

13200066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 13200066 is about 3633.1895078567. The cubic root of 13200066 is about 236.3335439814. Note that the first 3 decimals are identical.

13200066 divided by its sum of digits (18) gives a palindrome (733337).

Adding to 13200066 its reverse (66000231), we get a palindrome (79200297).

The spelling of 13200066 in words is "thirteen million, two hundred thousand, sixty-six".