12424046426665 has 4 divisors (see below), whose sum is σ = 14908855712004. Its totient is φ = 9939237141328.

The previous prime is 12424046426663. The next prime is 12424046426677. The reversal of 12424046426665 is 56662464042421.

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 8357487828624 + 4066558598041 = 2890932^2 + 2016571^2 .

It is a cyclic number.

It is not a de Polignac number, because 12424046426665 - 2¹ = 12424046426663 is a prime.

It is a super-2 number, since 2×12424046426665² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12424046426663) 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, 1242404642662 + ... + 1242404642671.

It is an arithmetic number, because the mean of its divisors is an integer number (3727213928001).

Almost surely, 2^{12424046426665} is an apocalyptic number.

It is an amenable number.

12424046426665 is a deficient number, since it is larger than the sum of its proper divisors (2484809285339).

12424046426665 is an equidigital number, since it uses as much as digits as its factorization.

12424046426665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2484809285338.

The product of its (nonzero) digits is 13271040, while the sum is 52.

The spelling of 12424046426665 in words is "twelve trillion, four hundred twenty-four billion, forty-six million, four hundred twenty-six thousand, six hundred sixty-five".