16563041 has 24 divisors (see below), whose sum is σ = 19714464. Its totient is φ = 13789440.

The previous prime is 16563023. The next prime is 16563047. The reversal of 16563041 is 14036561.

It is not a de Polignac number, because 16563041 - 2¹⁸ = 16300897 is a prime.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 16563041.

It is not an unprimeable number, because it can be changed into a prime (16563047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170705 + ... + 170801.

It is an arithmetic number, because the mean of its divisors is an integer number (821436).

Almost surely, 2^16563041 is an apocalyptic number.

16563041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16563041 is a deficient number, since it is larger than the sum of its proper divisors (3151423).

16563041 is a wasteful number, since it uses less digits than its factorization.

16563041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 16563041 is about 4069.7716152138. The cubic root of 16563041 is about 254.9059809743.

The spelling of 16563041 in words is "sixteen million, five hundred sixty-three thousand, forty-one".