16659339 has 4 divisors (see below), whose sum is σ = 22212456. Its totient is φ = 11106224.

The previous prime is 16659317. The next prime is 16659341. The reversal of 16659339 is 93395661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93395661 = 3 ⋅31131887.

It is a cyclic number.

It is not a de Polignac number, because 16659339 - 2¹⁹ = 16135051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16659339.

It is not an unprimeable number, because it can be changed into a prime (16659359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2776554 + ... + 2776559.

It is an arithmetic number, because the mean of its divisors is an integer number (5553114).

Almost surely, 2^16659339 is an apocalyptic number.

16659339 is a deficient number, since it is larger than the sum of its proper divisors (5553117).

16659339 is an equidigital number, since it uses as much as digits as its factorization.

16659339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5553116.

The product of its digits is 131220, while the sum is 42.

The square root of 16659339 is about 4081.5853537566. The cubic root of 16659339 is about 255.3990369097.

The spelling of 16659339 in words is "sixteen million, six hundred fifty-nine thousand, three hundred thirty-nine".