13166563 has 8 divisors (see below), whose sum is σ = 13895120. Its totient is φ = 12441600.

The previous prime is 13166521. The next prime is 13166567. The reversal of 13166563 is 36566131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13166563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13166567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10363 + ... + 11563.

It is an arithmetic number, because the mean of its divisors is an integer number (1736890).

Almost surely, 2^13166563 is an apocalyptic number.

13166563 is a deficient number, since it is larger than the sum of its proper divisors (728557).

13166563 is a wasteful number, since it uses less digits than its factorization.

13166563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797.

The product of its digits is 9720, while the sum is 31.

The square root of 13166563 is about 3628.5758914483. The cubic root of 13166563 is about 236.1334290486.

The spelling of 13166563 in words is "thirteen million, one hundred sixty-six thousand, five hundred sixty-three".