12655210777 has 8 divisors (see below), whose sum is σ = 13972019040. Its totient is φ = 11366124960.

The previous prime is 12655210747. The next prime is 12655210819. The reversal of 12655210777 is 77701255621.

12655210777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12655210777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12655210747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6929652 + ... + 6931477.

It is an arithmetic number, because the mean of its divisors is an integer number (1746502380).

Almost surely, 2^12655210777 is an apocalyptic number.

It is an amenable number.

12655210777 is a deficient number, since it is larger than the sum of its proper divisors (1316808263).

12655210777 is a wasteful number, since it uses less digits than its factorization.

12655210777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13861223.

The product of its (nonzero) digits is 205800, while the sum is 43.

The spelling of 12655210777 in words is "twelve billion, six hundred fifty-five million, two hundred ten thousand, seven hundred seventy-seven".