16534663 has 2 divisors, whose sum is σ = 16534664. Its totient is φ = 16534662.

The previous prime is 16534657. The next prime is 16534673. The reversal of 16534663 is 36643561.

It is a weak prime.

It is an emirp because it is prime and its reverse (36643561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16534663 - 2⁹ = 16534151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16534673) 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 as a sum of consecutive naturals, namely, 8267331 + 8267332.

It is an arithmetic number, because the mean of its divisors is an integer number (8267332).

Almost surely, 2^16534663 is an apocalyptic number.

16534663 is a deficient number, since it is larger than the sum of its proper divisors (1).

16534663 is an equidigital number, since it uses as much as digits as its factorization.

16534663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 34.

The square root of 16534663 is about 4066.2836841519. The cubic root of 16534663 is about 254.7603181675.

The spelling of 16534663 in words is "sixteen million, five hundred thirty-four thousand, six hundred sixty-three".