16566226 has 8 divisors (see below), whose sum is σ = 24867324. Its totient is φ = 8277120.

The previous prime is 16566203. The next prime is 16566229. The reversal of 16566226 is 62266561.

It can be written as a sum of positive squares in 2 ways, for example, as 16443025 + 123201 = 4055^2 + 351^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 16566191 and 16566200.

It is not an unprimeable number, because it can be changed into a prime (16566229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2406 + ... + 6238.

Almost surely, 2^16566226 is an apocalyptic number.

16566226 is a deficient number, since it is larger than the sum of its proper divisors (8301098).

16566226 is a wasteful number, since it uses less digits than its factorization.

16566226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5996.

The product of its digits is 25920, while the sum is 34.

The square root of 16566226 is about 4070.1628960031. The cubic root of 16566226 is about 254.9223190271.

The spelling of 16566226 in words is "sixteen million, five hundred sixty-six thousand, two hundred twenty-six".