16657066 has 8 divisors (see below), whose sum is σ = 25182720. Its totient is φ = 8262828.

The previous prime is 16657063. The next prime is 16657103. The reversal of 16657066 is 66075661.

It is a happy number.

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 (16657063) 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, 32536 + ... + 33043.

It is an arithmetic number, because the mean of its divisors is an integer number (3147840).

Almost surely, 2^16657066 is an apocalyptic number.

16657066 is a deficient number, since it is larger than the sum of its proper divisors (8525654).

16657066 is a wasteful number, since it uses less digits than its factorization.

16657066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65708.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 16657066 is about 4081.3068985314. The cubic root of 16657066 is about 255.3874208343.

The spelling of 16657066 in words is "sixteen million, six hundred fifty-seven thousand, sixty-six".