16560051 has 4 divisors (see below), whose sum is σ = 22080072. Its totient is φ = 11040032.

The previous prime is 16560041. The next prime is 16560083. The reversal of 16560051 is 15006561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16560051 - 2⁶ = 16559987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16560041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2760006 + ... + 2760011.

It is an arithmetic number, because the mean of its divisors is an integer number (5520018).

Almost surely, 2^16560051 is an apocalyptic number.

16560051 is a deficient number, since it is larger than the sum of its proper divisors (5520021).

16560051 is an equidigital number, since it uses as much as digits as its factorization.

16560051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5520020.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 16560051 is about 4069.4042561535. The cubic root of 16560051 is about 254.8906413042.

The spelling of 16560051 in words is "sixteen million, five hundred sixty thousand, fifty-one".