12618016 has 24 divisors (see below), whose sum is σ = 25700220. Its totient is φ = 6091008.

The previous prime is 12617989. The next prime is 12618017. The reversal of 12618016 is 61081621.

It can be written as a sum of positive squares in 2 ways, for example, as 11971600 + 646416 = 3460^2 + 804^2 .

It is not an unprimeable number, because it can be changed into a prime (12618017) 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, 5871 + ... + 7726.

Almost surely, 2^12618016 is an apocalyptic number.

12618016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12618016 is an abundant number, since it is smaller than the sum of its proper divisors (13082204).

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

12618016 is a wasteful number, since it uses less digits than its factorization.

12618016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13636 (or 13628 counting only the distinct ones).

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

The square root of 12618016 is about 3552.1846798836. The cubic root of 12618016 is about 232.8075307649.

Adding to 12618016 its reverse (61081621), we get a palindrome (73699637).

The spelling of 12618016 in words is "twelve million, six hundred eighteen thousand, sixteen".