16746683309 has 8 divisors (see below), whose sum is σ = 17173373760. Its totient is φ = 16325293600.

The previous prime is 16746683297. The next prime is 16746683339. The reversal of 16746683309 is 90338664761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16746683309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16746683339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1318787 + ... + 1331424.

It is an arithmetic number, because the mean of its divisors is an integer number (2146671720).

Almost surely, 2^16746683309 is an apocalyptic number.

It is an amenable number.

16746683309 is a deficient number, since it is larger than the sum of its proper divisors (426690451).

16746683309 is an equidigital number, since it uses as much as digits as its factorization.

16746683309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650371.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 16746683309 in words is "sixteen billion, seven hundred forty-six million, six hundred eighty-three thousand, three hundred nine".