16650245 has 12 divisors (see below), whose sum is σ = 20467116. Its totient is φ = 13003200.

The previous prime is 16650241. The next prime is 16650247. The reversal of 16650245 is 54205661.

It can be written as a sum of positive squares in 2 ways, for example, as 3912484 + 12737761 = 1978^2 + 3569^2 .

It is not a de Polignac number, because 16650245 - 2² = 16650241 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16650241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8345 + ... + 10145.

It is an arithmetic number, because the mean of its divisors is an integer number (1705593).

Almost surely, 2^16650245 is an apocalyptic number.

It is an amenable number.

16650245 is a deficient number, since it is larger than the sum of its proper divisors (3816871).

16650245 is an equidigital number, since it uses as much as digits as its factorization.

16650245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892 (or 1849 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 16650245 is about 4080.4711737739. The cubic root of 16650245 is about 255.3525560421.

The spelling of 16650245 in words is "sixteen million, six hundred fifty thousand, two hundred forty-five".