16672165 has 8 divisors (see below), whose sum is σ = 20102688. Its totient is φ = 13273680.

The previous prime is 16672153. The next prime is 16672193. The reversal of 16672165 is 56127661.

It is a happy number.

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

It is not a de Polignac number, because 16672165 - 2⁷ = 16672037 is a prime.

It is a super-2 number, since 2×16672165² = 555922171574450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16672165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6847 + ... + 8956.

It is an arithmetic number, because the mean of its divisors is an integer number (2512836).

Almost surely, 2^16672165 is an apocalyptic number.

It is an amenable number.

16672165 is a deficient number, since it is larger than the sum of its proper divisors (3430523).

16672165 is a wasteful number, since it uses less digits than its factorization.

16672165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16019.

The product of its digits is 15120, while the sum is 34.

The square root of 16672165 is about 4083.1562546638. The cubic root of 16672165 is about 255.4645638741.

The spelling of 16672165 in words is "sixteen million, six hundred seventy-two thousand, one hundred sixty-five".