16560073 has 4 divisors (see below), whose sum is σ = 17131140. Its totient is φ = 15989008.

The previous prime is 16560041. The next prime is 16560083. The reversal of 16560073 is 37006561.

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 8248384 + 8311689 = 2872^2 + 2883^2 .

It is a cyclic number.

It is not a de Polignac number, because 16560073 - 2⁵ = 16560041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16560013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285490 + ... + 285547.

It is an arithmetic number, because the mean of its divisors is an integer number (4282785).

Almost surely, 2^16560073 is an apocalyptic number.

It is an amenable number.

16560073 is a deficient number, since it is larger than the sum of its proper divisors (571067).

16560073 is an equidigital number, since it uses as much as digits as its factorization.

16560073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571066.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 16560073 is about 4069.4069592509. The cubic root of 16560073 is about 254.8907541781.

The spelling of 16560073 in words is "sixteen million, five hundred sixty thousand, seventy-three".