16696644 has 24 divisors (see below), whose sum is σ = 39509568. Its totient is φ = 5486880.

The previous prime is 16696639. The next prime is 16696661. The reversal of 16696644 is 44669661.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 16696596 and 16696605.

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, 8947 + ... + 10650.

It is an arithmetic number, because the mean of its divisors is an integer number (1646232).

Almost surely, 2^16696644 is an apocalyptic number.

It is an amenable number.

16696644 is an abundant number, since it is smaller than the sum of its proper divisors (22812924).

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

16696644 is a wasteful number, since it uses less digits than its factorization.

16696644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19675 (or 19673 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 16696644 is about 4086.1527137394. The cubic root of 16696644 is about 255.5895318265.

The spelling of 16696644 in words is "sixteen million, six hundred ninety-six thousand, six hundred forty-four".