13660606 has 4 divisors (see below), whose sum is σ = 20490912. Its totient is φ = 6830302.

The previous prime is 13660589. The next prime is 13660609. The reversal of 13660606 is 60606631.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×13660606² = 373224312574472, which contains 22 as substring.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13660609) 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 as a sum of consecutive naturals, namely, 3415150 + ... + 3415153.

It is an arithmetic number, because the mean of its divisors is an integer number (5122728).

Almost surely, 2^13660606 is an apocalyptic number.

13660606 is a deficient number, since it is larger than the sum of its proper divisors (6830306).

13660606 is an equidigital number, since it uses as much as digits as its factorization.

13660606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6830305.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 13660606 is about 3696.0257033738. The cubic root of 13660606 is about 239.0506828083.

The spelling of 13660606 in words is "thirteen million, six hundred sixty thousand, six hundred six".