16520168 has 32 divisors (see below), whose sum is σ = 35644800. Its totient is φ = 7031232.

The previous prime is 16520159. The next prime is 16520173. The reversal of 16520168 is 86102561.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16520168.

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 7 ways as a sum of consecutive naturals, for example, 7853 + ... + 9731.

It is an arithmetic number, because the mean of its divisors is an integer number (1113900).

Almost surely, 2^16520168 is an apocalyptic number.

It is an amenable number.

16520168 is an abundant number, since it is smaller than the sum of its proper divisors (19124632).

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

16520168 is a wasteful number, since it uses less digits than its factorization.

16520168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049 (or 2045 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 16520168 is about 4064.5009533767. The cubic root of 16520168 is about 254.6858517690.

The spelling of 16520168 in words is "sixteen million, five hundred twenty thousand, one hundred sixty-eight".