12461711065 has 4 divisors (see below), whose sum is σ = 14954053284. Its totient is φ = 9969368848.

The previous prime is 12461711063. The next prime is 12461711069. The reversal of 12461711065 is 56011716421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5629200784 + 6832510281 = 75028^2 + 82659^2 .

It is a cyclic number.

It is not a de Polignac number, because 12461711065 - 2¹ = 12461711063 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 12461711065.

It is not an unprimeable number, because it can be changed into a prime (12461711063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1246171102 + ... + 1246171111.

It is an arithmetic number, because the mean of its divisors is an integer number (3738513321).

Almost surely, 2^12461711065 is an apocalyptic number.

It is an amenable number.

12461711065 is a deficient number, since it is larger than the sum of its proper divisors (2492342219).

12461711065 is an equidigital number, since it uses as much as digits as its factorization.

12461711065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492342218.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 12461711065 in words is "twelve billion, four hundred sixty-one million, seven hundred eleven thousand, sixty-five".