12280066 has 8 divisors (see below), whose sum is σ = 18812160. Its totient is φ = 6009348.

The previous prime is 12280063. The next prime is 12280067. The reversal of 12280066 is 66008221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12280066.

It is not an unprimeable number, because it can be changed into a prime (12280063) 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, 65226 + ... + 65413.

It is an arithmetic number, because the mean of its divisors is an integer number (2351520).

Almost surely, 2^12280066 is an apocalyptic number.

12280066 is a deficient number, since it is larger than the sum of its proper divisors (6532094).

12280066 is a wasteful number, since it uses less digits than its factorization.

12280066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130688.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 12280066 is about 3504.2925106218. The cubic root of 12280066 is about 230.7102555906.

Adding to 12280066 its reverse (66008221), we get a palindrome (78288287).

The spelling of 12280066 in words is "twelve million, two hundred eighty thousand, sixty-six".