16650769 has 4 divisors (see below), whose sum is σ = 17630244. Its totient is φ = 15671296.

The previous prime is 16650763. The next prime is 16650791. The reversal of 16650769 is 96705661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6822544 + 9828225 = 2612^2 + 3135^2 .

It is a cyclic number.

It is not a de Polignac number, because 16650769 - 2²³ = 8262161 is a prime.

It is a super-2 number, since 2×16650769² = 554496216582722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16650763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489712 + ... + 489745.

It is an arithmetic number, because the mean of its divisors is an integer number (4407561).

Almost surely, 2^16650769 is an apocalyptic number.

It is an amenable number.

16650769 is a deficient number, since it is larger than the sum of its proper divisors (979475).

16650769 is an equidigital number, since it uses as much as digits as its factorization.

16650769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979474.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 16650769 is about 4080.5353815400. The cubic root of 16650769 is about 255.3552347482.

The spelling of 16650769 in words is "sixteen million, six hundred fifty thousand, seven hundred sixty-nine".