12005078663 has 2 divisors, whose sum is σ = 12005078664. Its totient is φ = 12005078662.

The previous prime is 12005078653. The next prime is 12005078713. The reversal of 12005078663 is 36687050021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12005078663 - 2⁶ = 12005078599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12005078623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6002539331 + 6002539332.

It is an arithmetic number, because the mean of its divisors is an integer number (6002539332).

Almost surely, 2^12005078663 is an apocalyptic number.

12005078663 is a deficient number, since it is larger than the sum of its proper divisors (1).

12005078663 is an equidigital number, since it uses as much as digits as its factorization.

12005078663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 12005078663 in words is "twelve billion, five million, seventy-eight thousand, six hundred sixty-three".