16662959 has 2 divisors, whose sum is σ = 16662960. Its totient is φ = 16662958.

The previous prime is 16662953. The next prime is 16662979. The reversal of 16662959 is 95926661.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16662959 is a prime.

It is a super-3 number, since 3×16662959³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16662953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8331479 + 8331480.

It is an arithmetic number, because the mean of its divisors is an integer number (8331480).

Almost surely, 2^16662959 is an apocalyptic number.

16662959 is a deficient number, since it is larger than the sum of its proper divisors (1).

16662959 is an equidigital number, since it uses as much as digits as its factorization.

16662959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 44.

The square root of 16662959 is about 4082.0287848079. The cubic root of 16662959 is about 255.4175345935.

The spelling of 16662959 in words is "sixteen million, six hundred sixty-two thousand, nine hundred fifty-nine".