12616655 has 8 divisors (see below), whose sum is σ = 15165600. Its totient is φ = 10076256.

The previous prime is 12616649. The next prime is 12616687. The reversal of 12616655 is 55661621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12616655 - 2¹² = 12612559 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1766 + ... + 5324.

It is an arithmetic number, because the mean of its divisors is an integer number (1895700).

Almost surely, 2^12616655 is an apocalyptic number.

12616655 is a deficient number, since it is larger than the sum of its proper divisors (2548945).

12616655 is an equidigital number, since it uses as much as digits as its factorization.

12616655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4273.

The product of its digits is 10800, while the sum is 32.

The square root of 12616655 is about 3551.9931024708. The cubic root of 12616655 is about 232.7991601293.

The spelling of 12616655 in words is "twelve million, six hundred sixteen thousand, six hundred fifty-five".