12661108 has 12 divisors (see below), whose sum is σ = 22299172. Its totient is φ = 6289920.

The previous prime is 12661097. The next prime is 12661123. The reversal of 12661108 is 80116621.

It can be written as a sum of positive squares in 2 ways, for example, as 5963364 + 6697744 = 2442^2 + 2588^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9453 + ... + 10708.

Almost surely, 2^12661108 is an apocalyptic number.

It is an amenable number.

12661108 is a deficient number, since it is larger than the sum of its proper divisors (9638064).

12661108 is a wasteful number, since it uses less digits than its factorization.

12661108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20322 (or 20320 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 12661108 is about 3558.2450730662. The cubic root of 12661108 is about 233.0722512889.

Adding to 12661108 its reverse (80116621), we get a palindrome (92777729).

It can be divided in two parts, 12661 and 108, that added together give a square (12769 = 113²).

The spelling of 12661108 in words is "twelve million, six hundred sixty-one thousand, one hundred eight".