12655222087 has 2 divisors, whose sum is σ = 12655222088. Its totient is φ = 12655222086.

The previous prime is 12655222067. The next prime is 12655222117. The reversal of 12655222087 is 78022255621.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12655222087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12655222067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6327611043 + 6327611044.

It is an arithmetic number, because the mean of its divisors is an integer number (6327611044).

Almost surely, 2^12655222087 is an apocalyptic number.

12655222087 is a deficient number, since it is larger than the sum of its proper divisors (1).

12655222087 is an equidigital number, since it uses as much as digits as its factorization.

12655222087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 12655222087 in words is "twelve billion, six hundred fifty-five million, two hundred twenty-two thousand, eighty-seven".