13436666 has 8 divisors (see below), whose sum is σ = 20535444. Its totient is φ = 6591520.

The previous prime is 13436663. The next prime is 13436677. The reversal of 13436666 is 66663431.

It can be written as a sum of positive squares in 2 ways, for example, as 10426441 + 3010225 = 3229^2 + 1735^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13436663) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 63275 + ... + 63486.

Almost surely, 2^13436666 is an apocalyptic number.

13436666 is a deficient number, since it is larger than the sum of its proper divisors (7098778).

13436666 is a wasteful number, since it uses less digits than its factorization.

13436666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126816.

The product of its digits is 46656, while the sum is 35.

The square root of 13436666 is about 3665.6058162328. The cubic root of 13436666 is about 237.7372167269.

The spelling of 13436666 in words is "thirteen million, four hundred thirty-six thousand, six hundred sixty-six".