12336720005 has 16 divisors (see below), whose sum is σ = 15208299504. Its totient is φ = 9600030720.

The previous prime is 12336720001. The next prime is 12336720049. The reversal of 12336720005 is 50002763321.

It can be written as a sum of positive squares in 8 ways, for example, as 1515311329 + 10821408676 = 38927^2 + 104026^2 .

It is not a de Polignac number, because 12336720005 - 2² = 12336720001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12336720005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12336720001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 946835 + ... + 959775.

It is an arithmetic number, because the mean of its divisors is an integer number (950518719).

Almost surely, 2^12336720005 is an apocalyptic number.

It is an amenable number.

12336720005 is a deficient number, since it is larger than the sum of its proper divisors (2871579499).

12336720005 is a wasteful number, since it uses less digits than its factorization.

12336720005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18136.

The product of its (nonzero) digits is 7560, while the sum is 29.

The spelling of 12336720005 in words is "twelve billion, three hundred thirty-six million, seven hundred twenty thousand, five".