13116666 has 32 divisors (see below), whose sum is σ = 27042048. Its totient is φ = 4239360.

The previous prime is 13116661. The next prime is 13116721. The reversal of 13116666 is 66661131.

It is a nude number because it is divisible by every one of its digits.

Its product of digits (3888) is a multiple of the sum of its prime divisors (486).

It is not an unprimeable number, because it can be changed into a prime (13116661) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 54306 + ... + 54546.

It is an arithmetic number, because the mean of its divisors is an integer number (845064).

Almost surely, 2^13116666 is an apocalyptic number.

13116666 is an abundant number, since it is smaller than the sum of its proper divisors (13925382).

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

13116666 is a wasteful number, since it uses less digits than its factorization.

13116666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486.

The product of its digits is 3888, while the sum is 30.

The square root of 13116666 is about 3621.6938026288. The cubic root of 13116666 is about 235.8347617633.

Adding to 13116666 its reverse (66661131), we get a palindrome (79777797).

The spelling of 13116666 in words is "thirteen million, one hundred sixteen thousand, six hundred sixty-six".