16659011 has 4 divisors (see below), whose sum is σ = 16779000. Its totient is φ = 16539024.

The previous prime is 16659007. The next prime is 16659023. The reversal of 16659011 is 11095661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16659011 - 2² = 16659007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16659911) 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, 59786 + ... + 60063.

It is an arithmetic number, because the mean of its divisors is an integer number (4194750).

Almost surely, 2^16659011 is an apocalyptic number.

16659011 is a deficient number, since it is larger than the sum of its proper divisors (119989).

16659011 is a wasteful number, since it uses less digits than its factorization.

16659011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119988.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 16659011 is about 4081.5451730932. The cubic root of 16659011 is about 255.3973607441.

The spelling of 16659011 in words is "sixteen million, six hundred fifty-nine thousand, eleven".