12655680 has 56 divisors (see below), whose sum is σ = 40184832. Its totient is φ = 3374592.

The previous prime is 12655651. The next prime is 12655693. The reversal of 12655680 is 8655621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5632 + ... + 7551.

Almost surely, 2^12655680 is an apocalyptic number.

12655680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12655680 is an abundant number, since it is smaller than the sum of its proper divisors (27529152).

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

12655680 is a wasteful number, since it uses less digits than its factorization.

12655680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13203 (or 13193 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 12655680 is about 3557.4822557534. The cubic root of 12655680 is about 233.0389393804.

The spelling of 12655680 in words is "twelve million, six hundred fifty-five thousand, six hundred eighty".