19996606 has 12 divisors (see below), whose sum is σ = 34892208. Its totient is φ = 8569932.

The previous prime is 19996597. The next prime is 19996621. The reversal of 19996606 is 60669991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101926 + ... + 102121.

It is an arithmetic number, because the mean of its divisors is an integer number (2907684).

Almost surely, 2^19996606 is an apocalyptic number.

19996606 is a deficient number, since it is larger than the sum of its proper divisors (14895602).

19996606 is a wasteful number, since it uses less digits than its factorization.

19996606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204063 (or 204056 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 46.

The square root of 19996606 is about 4471.7564781638. The cubic root of 19996606 is about 271.4264062352.

It can be divided in two parts, 19996 and 606, that added together give a palindrome (20602).

The spelling of 19996606 in words is "nineteen million, nine hundred ninety-six thousand, six hundred six".