16519916 has 12 divisors (see below), whose sum is σ = 33039888. Its totient is φ = 7079952.

The previous prime is 16519907. The next prime is 16519961. The reversal of 16519916 is 61991561.

It is a happy number.

16519916 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 16519916.

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, 294971 + ... + 295026.

It is an arithmetic number, because the mean of its divisors is an integer number (2753324).

Almost surely, 2^16519916 is an apocalyptic number.

It is an amenable number.

16519916 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16519916 is a wasteful number, since it uses less digits than its factorization.

16519916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590008 (or 590006 counting only the distinct ones).

The product of its digits is 14580, while the sum is 38.

The square root of 16519916 is about 4064.4699531427. The cubic root of 16519916 is about 254.6845567628.

The spelling of 16519916 in words is "sixteen million, five hundred nineteen thousand, nine hundred sixteen".