12166055 has 8 divisors (see below), whose sum is σ = 15926544. Its totient is φ = 8848000.

The previous prime is 12166039. The next prime is 12166069. The reversal of 12166055 is 55066121.

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

It is not a de Polignac number, because 12166055 - 2⁴ = 12166039 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110546 + ... + 110655.

It is an arithmetic number, because the mean of its divisors is an integer number (1990818).

Almost surely, 2^12166055 is an apocalyptic number.

12166055 is a deficient number, since it is larger than the sum of its proper divisors (3760489).

12166055 is a wasteful number, since it uses less digits than its factorization.

12166055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221217.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 12166055 is about 3487.9872419491. The cubic root of 12166055 is about 229.9940452144.

The spelling of 12166055 in words is "twelve million, one hundred sixty-six thousand, fifty-five".