12578166 has 28 divisors (see below), whose sum is σ = 28291212. Its totient is φ = 4192236.

The previous prime is 12578161. The next prime is 12578173. The reversal of 12578166 is 66187521.

It is a self number, because there is not a number n which added to its sum of digits gives 12578166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12578161) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 2856 + ... + 5771.

Almost surely, 2^12578166 is an apocalyptic number.

12578166 is an abundant number, since it is smaller than the sum of its proper divisors (15713046).

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

12578166 is an frugal number, since it uses more digits than its factorization.

12578166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8647 (or 8632 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 12578166 is about 3546.5710200136. The cubic root of 12578166 is about 232.5621893994.

The spelling of 12578166 in words is "twelve million, five hundred seventy-eight thousand, one hundred sixty-six".