12166078 has 8 divisors (see below), whose sum is σ = 18264168. Its totient is φ = 6078024.

The previous prime is 12166073. The next prime is 12166139. The reversal of 12166078 is 87066121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12166073) 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, 2625 + ... + 5587.

It is an arithmetic number, because the mean of its divisors is an integer number (2283021).

Almost surely, 2^12166078 is an apocalyptic number.

12166078 is a deficient number, since it is larger than the sum of its proper divisors (6098090).

12166078 is a wasteful number, since it uses less digits than its factorization.

12166078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5018.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12166078 is about 3487.9905389780. The cubic root of 12166078 is about 229.9941901494.

The spelling of 12166078 in words is "twelve million, one hundred sixty-six thousand, seventy-eight".