13020666 has 8 divisors (see below), whose sum is σ = 26041344. Its totient is φ = 4340220.

The previous prime is 13020659. The next prime is 13020671. The reversal of 13020666 is 66602031.

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

13020666 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1085050 + ... + 1085061.

It is an arithmetic number, because the mean of its divisors is an integer number (3255168).

Almost surely, 2^13020666 is an apocalyptic number.

13020666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13020666 is a wasteful number, since it uses less digits than its factorization.

13020666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170116.

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

The square root of 13020666 is about 3608.4159959739. The cubic root of 13020666 is about 235.2579994291.

Adding to 13020666 its reverse (66602031), we get a palindrome (79622697).

The spelling of 13020666 in words is "thirteen million, twenty thousand, six hundred sixty-six".