16659013 has 16 divisors (see below), whose sum is σ = 19668096. Its totient is φ = 13815360.

The previous prime is 16659007. The next prime is 16659023. The reversal of 16659013 is 31095661.

It is a cyclic number.

It is not a de Polignac number, because 16659013 - 2⁵ = 16658981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16659023) 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 15 ways as a sum of consecutive naturals, for example, 30523 + ... + 31063.

It is an arithmetic number, because the mean of its divisors is an integer number (1229256).

Almost surely, 2^16659013 is an apocalyptic number.

It is an amenable number.

16659013 is a deficient number, since it is larger than the sum of its proper divisors (3009083).

16659013 is an equidigital number, since it uses as much as digits as its factorization.

16659013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 16659013 is about 4081.5454180984. The cubic root of 16659013 is about 255.3973709647.

The spelling of 16659013 in words is "sixteen million, six hundred fifty-nine thousand, thirteen".