13660206 has 64 divisors (see below), whose sum is σ = 33177600. Its totient is φ = 3665376.

The previous prime is 13660201. The next prime is 13660249. The reversal of 13660206 is 60206631.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13660201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76225 + ... + 76403.

It is an arithmetic number, because the mean of its divisors is an integer number (518400).

Almost surely, 2^13660206 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13660206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16588800).

13660206 is an abundant number, since it is smaller than the sum of its proper divisors (19517394).

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

13660206 is a wasteful number, since it uses less digits than its factorization.

13660206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 13660206 is about 3695.9715907999. The cubic root of 13660206 is about 239.0483495490.

Adding to 13660206 its reverse (60206631), we get a palindrome (73866837).

The spelling of 13660206 in words is "thirteen million, six hundred sixty thousand, two hundred six".