16650745 has 16 divisors (see below), whose sum is σ = 21435840. Its totient is φ = 12377664.

The previous prime is 16650719. The next prime is 16650749. The reversal of 16650745 is 54705661.

It is a happy number.

It is not a de Polignac number, because 16650745 - 2⁹ = 16650233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16650745.

It is not an unprimeable number, because it can be changed into a prime (16650749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3382 + ... + 6688.

It is an arithmetic number, because the mean of its divisors is an integer number (1339740).

Almost surely, 2^16650745 is an apocalyptic number.

It is an amenable number.

16650745 is a deficient number, since it is larger than the sum of its proper divisors (4785095).

16650745 is a wasteful number, since it uses less digits than its factorization.

16650745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 16650745 is about 4080.5324407484. The cubic root of 16650745 is about 255.3551120606.

The spelling of 16650745 in words is "sixteen million, six hundred fifty thousand, seven hundred forty-five".