16560613 has 2 divisors, whose sum is σ = 16560614. Its totient is φ = 16560612.

The previous prime is 16560611. The next prime is 16560617. The reversal of 16560613 is 31606561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9042049 + 7518564 = 3007^2 + 2742^2 .

It is a cyclic number.

It is not a de Polignac number, because 16560613 - 2¹ = 16560611 is a prime.

Together with 16560611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16560611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8280306 + 8280307.

It is an arithmetic number, because the mean of its divisors is an integer number (8280307).

Almost surely, 2^16560613 is an apocalyptic number.

It is an amenable number.

16560613 is a deficient number, since it is larger than the sum of its proper divisors (1).

16560613 is an equidigital number, since it uses as much as digits as its factorization.

16560613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 16560613 is about 4069.4733074441. The cubic root of 16560613 is about 254.8935246875.

The spelling of 16560613 in words is "sixteen million, five hundred sixty thousand, six hundred thirteen".