16631606 has 8 divisors (see below), whose sum is σ = 25087320. Its totient is φ = 8269168.

The previous prime is 16631603. The next prime is 16631621. The reversal of 16631606 is 60613661.

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

It is a super-2 number, since 2×16631606² = 553220636278472, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16631603) 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, 22871 + ... + 23586.

It is an arithmetic number, because the mean of its divisors is an integer number (3135915).

Almost surely, 2^16631606 is an apocalyptic number.

16631606 is a deficient number, since it is larger than the sum of its proper divisors (8455714).

16631606 is a wasteful number, since it uses less digits than its factorization.

16631606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46638.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 16631606 is about 4078.1866068144. The cubic root of 16631606 is about 255.2572362556.

The spelling of 16631606 in words is "sixteen million, six hundred thirty-one thousand, six hundred six".