16566446063 has 8 divisors (see below), whose sum is σ = 17089345200. Its totient is φ = 16051654080.

The previous prime is 16566445967. The next prime is 16566446087. The reversal of 16566446063 is 36064466561.

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

It is a cyclic number.

It is not a de Polignac number, because 16566446063 - 2⁸ = 16566445807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16566445999 and 16566446017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16566446363) 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, 2022638 + ... + 2030811.

It is an arithmetic number, because the mean of its divisors is an integer number (2136168150).

Almost surely, 2^16566446063 is an apocalyptic number.

16566446063 is a deficient number, since it is larger than the sum of its proper divisors (522899137).

16566446063 is an equidigital number, since it uses as much as digits as its factorization.

16566446063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4053577.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 16566446063 in words is "sixteen billion, five hundred sixty-six million, four hundred forty-six thousand, sixty-three".