12165416 has 16 divisors (see below), whose sum is σ = 22921440. Its totient is φ = 6053040.

The previous prime is 12165407. The next prime is 12165427. The reversal of 12165416 is 61456121.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

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, 1916 + ... + 5291.

It is an arithmetic number, because the mean of its divisors is an integer number (1432590).

Almost surely, 2^12165416 is an apocalyptic number.

It is an amenable number.

12165416 is a deficient number, since it is larger than the sum of its proper divisors (10756024).

12165416 is a wasteful number, since it uses less digits than its factorization.

12165416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7424 (or 7420 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 12165416 is about 3487.8956406406. The cubic root of 12165416 is about 229.9900184704.

It can be divided in two parts, 1216 and 5416, that multiplied together give a palindrome (6585856).

The spelling of 12165416 in words is "twelve million, one hundred sixty-five thousand, four hundred sixteen".