16565023 has 2 divisors, whose sum is σ = 16565024. Its totient is φ = 16565022.

The previous prime is 16564973. The next prime is 16565027. The reversal of 16565023 is 32056561.

It is a strong prime.

It is an emirp because it is prime and its reverse (32056561) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16565023 is a prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 16564982 and 16565000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16565027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8282511 + 8282512.

It is an arithmetic number, because the mean of its divisors is an integer number (8282512).

Almost surely, 2^16565023 is an apocalyptic number.

16565023 is a deficient number, since it is larger than the sum of its proper divisors (1).

16565023 is an equidigital number, since it uses as much as digits as its factorization.

16565023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 16565023 is about 4070.0151105371. The cubic root of 16565023 is about 254.9161482598.

The spelling of 16565023 in words is "sixteen million, five hundred sixty-five thousand, twenty-three".