12016668 has 12 divisors (see below), whose sum is σ = 28038920. Its totient is φ = 4005552.

The previous prime is 12016663. The next prime is 12016687. The reversal of 12016668 is 86661021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12016663) 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, 500683 + ... + 500706.

Almost surely, 2^12016668 is an apocalyptic number.

It is an amenable number.

12016668 is an abundant number, since it is smaller than the sum of its proper divisors (16022252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12016668 is a wasteful number, since it uses less digits than its factorization.

12016668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001396 (or 1001394 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 12016668 is about 3466.5065988687. The cubic root of 12016668 is about 229.0488000091.

Adding to 12016668 its reverse (86661021), we get a palindrome (98677689).

The spelling of 12016668 in words is "twelve million, sixteen thousand, six hundred sixty-eight".