27166266 has 60 divisors (see below), whose sum is σ = 63835002. Its totient is φ = 8634384.

The previous prime is 27166253. The next prime is 27166267. The reversal of 27166266 is 66266172.

27166266 is a `hidden beast` number, since 27 + 1 + 6 + 626 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26780625 + 385641 = 5175^2 + 621^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27166266.

It is not an unprimeable number, because it can be changed into a prime (27166267) 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 29 ways as a sum of consecutive naturals, for example, 85540 + ... + 85856.

Almost surely, 2^27166266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27166266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31917501).

27166266 is an abundant number, since it is smaller than the sum of its proper divisors (36668736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27166266 is a wasteful number, since it uses less digits than its factorization.

27166266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 345 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 27166266 is about 5212.1268211739. The cubic root of 27166266 is about 300.6145402746.

The spelling of 27166266 in words is "twenty-seven million, one hundred sixty-six thousand, two hundred sixty-six".