12240706505 has 16 divisors (see below), whose sum is σ = 14765442048. Its totient is φ = 9741600000.

The previous prime is 12240706481. The next prime is 12240706523. The reversal of 12240706505 is 50560704221.

It is not a de Polignac number, because 12240706505 - 2¹⁸ = 12240444361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 1100120 + ... + 1111190.

It is an arithmetic number, because the mean of its divisors is an integer number (922840128).

Almost surely, 2^12240706505 is an apocalyptic number.

It is an amenable number.

12240706505 is a deficient number, since it is larger than the sum of its proper divisors (2524735543).

12240706505 is a wasteful number, since it uses less digits than its factorization.

12240706505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12208.

The product of its (nonzero) digits is 16800, while the sum is 32.

The spelling of 12240706505 in words is "twelve billion, two hundred forty million, seven hundred six thousand, five hundred five".