12516016 has 10 divisors (see below), whose sum is σ = 24249812. Its totient is φ = 6258000.

The previous prime is 12516013. The next prime is 12516017. The reversal of 12516016 is 61061521.

It is not an unprimeable number, because it can be changed into a prime (12516011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391110 + ... + 391141.

Almost surely, 2^12516016 is an apocalyptic number.

12516016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

12516016 is the 2238-th centered pentagonal number.

It is an amenable number.

12516016 is a deficient number, since it is larger than the sum of its proper divisors (11733796).

12516016 is an equidigital number, since it uses as much as digits as its factorization.

12516016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782259 (or 782253 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 12516016 is about 3537.7981853124. The cubic root of 12516016 is about 232.1785189598.

Adding to 12516016 its reverse (61061521), we get a palindrome (73577537).

The spelling of 12516016 in words is "twelve million, five hundred sixteen thousand, sixteen".