16000663 has 24 divisors (see below), whose sum is σ = 19908000. Its totient is φ = 12581184.

The previous prime is 16000627. The next prime is 16000667. The reversal of 16000663 is 36600061.

It is not a de Polignac number, because 16000663 - 2¹⁷ = 15869591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16000667) 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 in 23 ways as a sum of consecutive naturals, for example, 107313 + ... + 107461.

It is an arithmetic number, because the mean of its divisors is an integer number (829500).

Almost surely, 2^16000663 is an apocalyptic number.

16000663 is a deficient number, since it is larger than the sum of its proper divisors (3907337).

16000663 is a wasteful number, since it uses less digits than its factorization.

16000663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 16000663 is about 4000.0828741415. The cubic root of 16000663 is about 251.9876904628.

The spelling of 16000663 in words is "sixteen million, six hundred sixty-three", and thus it is an aban number.