12516680 has 32 divisors (see below), whose sum is σ = 30723840. Its totient is φ = 4551360.

The previous prime is 12516659. The next prime is 12516683. The reversal of 12516680 is 8661521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12516683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13784 + ... + 14663.

It is an arithmetic number, because the mean of its divisors is an integer number (960120).

Almost surely, 2^12516680 is an apocalyptic number.

12516680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12516680 is an abundant number, since it is smaller than the sum of its proper divisors (18207160).

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

12516680 is a wasteful number, since it uses less digits than its factorization.

12516680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28469 (or 28465 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 12516680 is about 3537.8920277476. The cubic root of 12516680 is about 232.1826247341.

The spelling of 12516680 in words is "twelve million, five hundred sixteen thousand, six hundred eighty".