12256665743 has 8 divisors (see below), whose sum is σ = 14025839520. Its totient is φ = 10492047360.

The previous prime is 12256665721. The next prime is 12256665761. The reversal of 12256665743 is 34756665221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12256665743 - 2¹⁴ = 12256649359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12256665713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1133078 + ... + 1143843.

It is an arithmetic number, because the mean of its divisors is an integer number (1753229940).

Almost surely, 2^12256665743 is an apocalyptic number.

12256665743 is a deficient number, since it is larger than the sum of its proper divisors (1769173777).

12256665743 is an equidigital number, since it uses as much as digits as its factorization.

12256665743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277697.

The product of its digits is 1814400, while the sum is 47.

The spelling of 12256665743 in words is "twelve billion, two hundred fifty-six million, six hundred sixty-five thousand, seven hundred forty-three".