16560801 has 8 divisors (see below), whose sum is σ = 24534560. Its totient is φ = 11040516.

The previous prime is 16560787. The next prime is 16560809. The reversal of 16560801 is 10806561.

16560801 is a `hidden beast` number, since 1 + 656 + 0 + 8 + 0 + 1 = 666.

It is not a de Polignac number, because 16560801 - 2¹³ = 16552609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 613363 = 16560801 / (1 + 6 + 5 + 6 + 0 + 8 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16560809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306655 + ... + 306708.

It is an arithmetic number, because the mean of its divisors is an integer number (3066820).

Almost surely, 2^16560801 is an apocalyptic number.

It is an amenable number.

16560801 is a deficient number, since it is larger than the sum of its proper divisors (7973759).

16560801 is an equidigital number, since it uses as much as digits as its factorization.

16560801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613372 (or 613366 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 16560801 is about 4069.4964061908. The cubic root of 16560801 is about 254.8944892210.

The spelling of 16560801 in words is "sixteen million, five hundred sixty thousand, eight hundred one".