16560087 has 4 divisors (see below), whose sum is σ = 22080120. Its totient is φ = 11040056.

The previous prime is 16560083. The next prime is 16560101. The reversal of 16560087 is 78006561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78006561 = 3 ⋅26002187.

It is a cyclic number.

It is not a de Polignac number, because 16560087 - 2² = 16560083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16560083) 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, 2760012 + ... + 2760017.

It is an arithmetic number, because the mean of its divisors is an integer number (5520030).

Almost surely, 2^16560087 is an apocalyptic number.

16560087 is a deficient number, since it is larger than the sum of its proper divisors (5520033).

16560087 is an equidigital number, since it uses as much as digits as its factorization.

16560087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5520032.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 16560087 is about 4069.4086794029. The cubic root of 16560087 is about 254.8908260069.

The spelling of 16560087 in words is "sixteen million, five hundred sixty thousand, eighty-seven".