16207666 has 8 divisors (see below), whose sum is σ = 24361344. Its totient is φ = 8087220.

The previous prime is 16207661. The next prime is 16207673. The reversal of 16207666 is 66670261.

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

It is not an unprimeable number, because it can be changed into a prime (16207661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7050 + ... + 9061.

It is an arithmetic number, because the mean of its divisors is an integer number (3045168).

Almost surely, 2^16207666 is an apocalyptic number.

16207666 is a deficient number, since it is larger than the sum of its proper divisors (8153678).

16207666 is a wasteful number, since it uses less digits than its factorization.

16207666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16616.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 16207666 is about 4025.8745633713. The cubic root of 16207666 is about 253.0697053633.

The spelling of 16207666 in words is "sixteen million, two hundred seven thousand, six hundred sixty-six".