12205577959 has 2 divisors, whose sum is σ = 12205577960. Its totient is φ = 12205577958.

The previous prime is 12205577953. The next prime is 12205577983. The reversal of 12205577959 is 95977550221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12205577959 is a prime.

It is a super-2 number, since 2×12205577959² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12205577953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6102788979 + 6102788980.

It is an arithmetic number, because the mean of its divisors is an integer number (6102788980).

Almost surely, 2^12205577959 is an apocalyptic number.

12205577959 is a deficient number, since it is larger than the sum of its proper divisors (1).

12205577959 is an equidigital number, since it uses as much as digits as its factorization.

12205577959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1984500, while the sum is 52.

The spelling of 12205577959 in words is "twelve billion, two hundred five million, five hundred seventy-seven thousand, nine hundred fifty-nine".