16664067 has 36 divisors (see below), whose sum is σ = 28987920. Its totient is φ = 9186912.

The previous prime is 16664059. The next prime is 16664107. The reversal of 16664067 is 76046661.

16664067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16664067 - 2³ = 16664059 is a prime.

It is a super-2 number, since 2×16664067² = 555382257960978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16664017) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12138 + ... + 13440.

It is an arithmetic number, because the mean of its divisors is an integer number (805220).

Almost surely, 2^16664067 is an apocalyptic number.

16664067 is a deficient number, since it is larger than the sum of its proper divisors (12323853).

16664067 is a wasteful number, since it uses less digits than its factorization.

16664067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352 (or 1342 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 16664067 is about 4082.1644993802. The cubic root of 16664067 is about 255.4231957800.

The spelling of 16664067 in words is "sixteen million, six hundred sixty-four thousand, sixty-seven".