12662680 has 16 divisors (see below), whose sum is σ = 28491120. Its totient is φ = 5065056.

The previous prime is 12662659. The next prime is 12662681. The reversal of 12662680 is 8626621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12662681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158244 + ... + 158323.

It is an arithmetic number, because the mean of its divisors is an integer number (1780695).

Almost surely, 2^12662680 is an apocalyptic number.

12662680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12662680 is an abundant number, since it is smaller than the sum of its proper divisors (15828440).

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

12662680 is a wasteful number, since it uses less digits than its factorization.

12662680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316578 (or 316574 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 12662680 is about 3558.4659616189. The cubic root of 12662680 is about 233.0818969538.

The spelling of 12662680 in words is "twelve million, six hundred sixty-two thousand, six hundred eighty".