16466687 has 4 divisors (see below), whose sum is σ = 16482720. Its totient is φ = 16450656.

The previous prime is 16466677. The next prime is 16466717. The reversal of 16466687 is 78666461.

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 16466687 - 2¹² = 16462591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16466627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6362 + ... + 8567.

It is an arithmetic number, because the mean of its divisors is an integer number (4120680).

Almost surely, 2^16466687 is an apocalyptic number.

16466687 is a deficient number, since it is larger than the sum of its proper divisors (16033).

16466687 is a wasteful number, since it uses less digits than its factorization.

16466687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16032.

The product of its digits is 290304, while the sum is 44.

The square root of 16466687 is about 4057.9165836670. The cubic root of 16466687 is about 254.4107218214.

The spelling of 16466687 in words is "sixteen million, four hundred sixty-six thousand, six hundred eighty-seven".