16566049 has 8 divisors (see below), whose sum is σ = 17341632. Its totient is φ = 15795120.

The previous prime is 16566031. The next prime is 16566071. The reversal of 16566049 is 94066561.

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 16566049 - 2⁷ = 16565921 is a prime.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 16565999 and 16566017.

It is not an unprimeable number, because it can be changed into a prime (16566019) 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 7 ways as a sum of consecutive naturals, for example, 7614 + ... + 9544.

It is an arithmetic number, because the mean of its divisors is an integer number (2167704).

Almost surely, 2^16566049 is an apocalyptic number.

It is an amenable number.

16566049 is a deficient number, since it is larger than the sum of its proper divisors (775583).

16566049 is a wasteful number, since it uses less digits than its factorization.

16566049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 16566049 is about 4070.1411523435. The cubic root of 16566049 is about 254.9214111274.

The spelling of 16566049 in words is "sixteen million, five hundred sixty-six thousand, forty-nine".