16494663 has 16 divisors (see below), whose sum is σ = 22521600. Its totient is φ = 10735296.

The previous prime is 16494659. The next prime is 16494683. The reversal of 16494663 is 36649461.

It is not a de Polignac number, because 16494663 - 2² = 16494659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16494623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27238 + ... + 27836.

It is an arithmetic number, because the mean of its divisors is an integer number (1407600).

Almost surely, 2^16494663 is an apocalyptic number.

16494663 is a deficient number, since it is larger than the sum of its proper divisors (6026937).

16494663 is a wasteful number, since it uses less digits than its factorization.

16494663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806.

The product of its digits is 93312, while the sum is 39.

The square root of 16494663 is about 4061.3622098995. The cubic root of 16494663 is about 254.5547169365.

The spelling of 16494663 in words is "sixteen million, four hundred ninety-four thousand, six hundred sixty-three".