20016996 has 12 divisors (see below), whose sum is σ = 46706352. Its totient is φ = 6672328.

The previous prime is 20016977. The next prime is 20017001. The reversal of 20016996 is 69961002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834030 + ... + 834053.

It is an arithmetic number, because the mean of its divisors is an integer number (3892196).

Almost surely, 2^20016996 is an apocalyptic number.

It is an amenable number.

20016996 is an abundant number, since it is smaller than the sum of its proper divisors (26689356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20016996 is a wasteful number, since it uses less digits than its factorization.

20016996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668090 (or 1668088 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 20016996 is about 4474.0357620386. The cubic root of 20016996 is about 271.5186302923.

Adding to 20016996 its reverse (69961002), we get a palindrome (89977998).

It can be divided in two parts, 20016 and 996, that added together give a palindrome (21012).

The spelling of 20016996 in words is "twenty million, sixteen thousand, nine hundred ninety-six".