12671722156 has 6 divisors (see below), whose sum is σ = 22175513780. Its totient is φ = 6335861076.

The previous prime is 12671722121. The next prime is 12671722163. The reversal of 12671722156 is 65122717621.

12671722156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12671722156² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1583965266 + ... + 1583965273.

Almost surely, 2^12671722156 is an apocalyptic number.

It is an amenable number.

12671722156 is a deficient number, since it is larger than the sum of its proper divisors (9503791624).

12671722156 is a wasteful number, since it uses less digits than its factorization.

12671722156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167930543 (or 3167930541 counting only the distinct ones).

The product of its digits is 70560, while the sum is 40.

The spelling of 12671722156 in words is "twelve billion, six hundred seventy-one million, seven hundred twenty-two thousand, one hundred fifty-six".