16416563 has 4 divisors (see below), whose sum is σ = 16436160. Its totient is φ = 16396968.

The previous prime is 16416557. The next prime is 16416593. The reversal of 16416563 is 36561461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36561461 = 1867 ⋅19583.

It is a cyclic number.

It is not a de Polignac number, because 16416563 - 2⁸ = 16416307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16416553) 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, 8483 + ... + 10236.

It is an arithmetic number, because the mean of its divisors is an integer number (4109040).

Almost surely, 2^16416563 is an apocalyptic number.

16416563 is a deficient number, since it is larger than the sum of its proper divisors (19597).

16416563 is an equidigital number, since it uses as much as digits as its factorization.

16416563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19596.

The product of its digits is 12960, while the sum is 32.

The square root of 16416563 is about 4051.7358008636. The cubic root of 16416563 is about 254.1523204420.

The spelling of 16416563 in words is "sixteen million, four hundred sixteen thousand, five hundred sixty-three".