16520112 has 120 divisors (see below), whose sum is σ = 54885376. Its totient is φ = 4712256.

The previous prime is 16520099. The next prime is 16520137. The reversal of 16520112 is 21102561.

16520112 is a `hidden beast` number, since 1 + 652 + 0 + 1 + 12 = 666.

16520112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26913 + ... + 27519.

Almost surely, 2^16520112 is an apocalyptic number.

16520112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16520112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27442688).

16520112 is an abundant number, since it is smaller than the sum of its proper divisors (38365264).

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

16520112 is an equidigital number, since it uses as much as digits as its factorization.

16520112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 16520112 is about 4064.4940644562. The cubic root of 16520112 is about 254.6855639910.

Adding to 16520112 its reverse (21102561), we get a palindrome (37622673).

The spelling of 16520112 in words is "sixteen million, five hundred twenty thousand, one hundred twelve".