16664113 has 4 divisors (see below), whose sum is σ = 16673008. Its totient is φ = 16655220.

The previous prime is 16664111. The next prime is 16664119. The reversal of 16664113 is 31146661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 16664113 - 2¹ = 16664111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16664111) 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, 423 + ... + 5788.

It is an arithmetic number, because the mean of its divisors is an integer number (4168252).

Almost surely, 2^16664113 is an apocalyptic number.

It is an amenable number.

16664113 is a deficient number, since it is larger than the sum of its proper divisors (8895).

16664113 is an equidigital number, since it uses as much as digits as its factorization.

16664113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8894.

The product of its digits is 2592, while the sum is 28.

The square root of 16664113 is about 4082.1701336422. The cubic root of 16664113 is about 255.4234308058.

The spelling of 16664113 in words is "sixteen million, six hundred sixty-four thousand, one hundred thirteen".