12722160823 has 4 divisors (see below), whose sum is σ = 12724893808. Its totient is φ = 12719427840.

The previous prime is 12722160779. The next prime is 12722160827. The reversal of 12722160823 is 32806122721.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32806122721 = 409 ⋅80210569.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12722160823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12722160827) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1359498 + ... + 1368823.

It is an arithmetic number, because the mean of its divisors is an integer number (3181223452).

Almost surely, 2^12722160823 is an apocalyptic number.

12722160823 is a deficient number, since it is larger than the sum of its proper divisors (2732985).

12722160823 is an equidigital number, since it uses as much as digits as its factorization.

12722160823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732984.

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 12722160823 in words is "twelve billion, seven hundred twenty-two million, one hundred sixty thousand, eight hundred twenty-three".