16620112 has 10 divisors (see below), whose sum is σ = 32201498. Its totient is φ = 8310048.

The previous prime is 16620049. The next prime is 16620119. The reversal of 16620112 is 21102661.

It can be written as a sum of positive squares in only one way, i.e., 10086976 + 6533136 = 3176^2 + 2556^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16620112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16620119) by changing a digit.

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 as a sum of consecutive naturals, namely, 519363 + ... + 519394.

Almost surely, 2^16620112 is an apocalyptic number.

It is an amenable number.

16620112 is a deficient number, since it is larger than the sum of its proper divisors (15581386).

16620112 is a wasteful number, since it uses less digits than its factorization.

16620112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038765 (or 1038759 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 16620112 is about 4076.7771584917. Note that the first 3 decimals coincide. The cubic root of 16620112 is about 255.1984204722.

Adding to 16620112 its reverse (21102661), we get a palindrome (37722773).

The spelling of 16620112 in words is "sixteen million, six hundred twenty thousand, one hundred twelve".