16687066 has 8 divisors (see below), whose sum is σ = 27306144. Its totient is φ = 7585020.

The previous prime is 16687051. The next prime is 16687079. The reversal of 16687066 is 66078661.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379230 + ... + 379273.

It is an arithmetic number, because the mean of its divisors is an integer number (3413268).

Almost surely, 2^16687066 is an apocalyptic number.

16687066 is a deficient number, since it is larger than the sum of its proper divisors (10619078).

16687066 is a wasteful number, since it uses less digits than its factorization.

16687066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758516.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 16687066 is about 4084.9805385093. The cubic root of 16687066 is about 255.5406496522.

The spelling of 16687066 in words is "sixteen million, six hundred eighty-seven thousand, sixty-six".