12155589799 has 2 divisors, whose sum is σ = 12155589800. Its totient is φ = 12155589798.

The previous prime is 12155589793. The next prime is 12155589811. The reversal of 12155589799 is 99798555121.

12155589799 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12155589799 - 2³ = 12155589791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12155589791) 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 as a sum of consecutive naturals, namely, 6077794899 + 6077794900.

It is an arithmetic number, because the mean of its divisors is an integer number (6077794900).

Almost surely, 2^12155589799 is an apocalyptic number.

12155589799 is a deficient number, since it is larger than the sum of its proper divisors (1).

12155589799 is an equidigital number, since it uses as much as digits as its factorization.

12155589799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10206000, while the sum is 61.

The spelling of 12155589799 in words is "twelve billion, one hundred fifty-five million, five hundred eighty-nine thousand, seven hundred ninety-nine".