16560493 has 2 divisors, whose sum is σ = 16560494. Its totient is φ = 16560492.

The previous prime is 16560487. The next prime is 16560521. The reversal of 16560493 is 39406561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8369449 + 8191044 = 2893^2 + 2862^2 .

It is a cyclic number.

It is not a de Polignac number, because 16560493 - 2¹⁷ = 16429421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16560413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8280246 + 8280247.

It is an arithmetic number, because the mean of its divisors is an integer number (8280247).

Almost surely, 2^16560493 is an apocalyptic number.

It is an amenable number.

16560493 is a deficient number, since it is larger than the sum of its proper divisors (1).

16560493 is an equidigital number, since it uses as much as digits as its factorization.

16560493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 16560493 is about 4069.4585634947. The cubic root of 16560493 is about 254.8929090239.

The spelling of 16560493 in words is "sixteen million, five hundred sixty thousand, four hundred ninety-three".