27770166 has 24 divisors (see below), whose sum is σ = 60633144. Its totient is φ = 9185280.

The previous prime is 27770137. The next prime is 27770167. The reversal of 27770166 is 66107772.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 27770166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27770167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3531 + ... + 8246.

It is an arithmetic number, because the mean of its divisors is an integer number (2526381).

Almost surely, 2^27770166 is an apocalyptic number.

27770166 is an abundant number, since it is smaller than the sum of its proper divisors (32862978).

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

27770166 is a wasteful number, since it uses less digits than its factorization.

27770166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11916 (or 11913 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 27770166 is about 5269.7406008266. The cubic root of 27770166 is about 302.8257665752.

The spelling of 27770166 in words is "twenty-seven million, seven hundred seventy thousand, one hundred sixty-six".