12655715771 has 2 divisors, whose sum is σ = 12655715772. Its totient is φ = 12655715770.

The previous prime is 12655715767. The next prime is 12655715777. The reversal of 12655715771 is 17751755621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12655715771 - 2² = 12655715767 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12655715777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6327857885 + 6327857886.

It is an arithmetic number, because the mean of its divisors is an integer number (6327857886).

Almost surely, 2^12655715771 is an apocalyptic number.

12655715771 is a deficient number, since it is larger than the sum of its proper divisors (1).

12655715771 is an equidigital number, since it uses as much as digits as its factorization.

12655715771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 514500, while the sum is 47.

The spelling of 12655715771 in words is "twelve billion, six hundred fifty-five million, seven hundred fifteen thousand, seven hundred seventy-one".