16664037 has 8 divisors (see below), whose sum is σ = 23927904. Its totient is φ = 10254768.

The previous prime is 16664027. The next prime is 16664057. The reversal of 16664037 is 73046661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16664037 - 2⁸ = 16663781 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 16663989 and 16664007.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 213603 + ... + 213680.

It is an arithmetic number, because the mean of its divisors is an integer number (2990988).

Almost surely, 2^16664037 is an apocalyptic number.

It is an amenable number.

16664037 is a deficient number, since it is larger than the sum of its proper divisors (7263867).

16664037 is a wasteful number, since it uses less digits than its factorization.

16664037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427299.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 16664037 is about 4082.1608248573. The cubic root of 16664037 is about 255.4230425021.

The spelling of 16664037 in words is "sixteen million, six hundred sixty-four thousand, thirty-seven".