12434671155056 has 20 divisors (see below), whose sum is σ = 24093132827712. Its totient is φ = 6217088489856.

The previous prime is 12434671155047. The next prime is 12434671155073. The reversal of 12434671155056 is 65055117643421.

It is a junction number, because it is equal to n+sod(n) for n = 12434671154995 and 12434671155013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15027461 + ... + 15833316.

Almost surely, 2^{12434671155056} is an apocalyptic number.

12434671155056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12434671155056 is a deficient number, since it is larger than the sum of its proper divisors (11658461672656).

12434671155056 is a wasteful number, since it uses less digits than its factorization.

12434671155056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30885968 (or 30885962 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 50.

Adding to 12434671155056 its reverse (65055117643421), we get a palindrome (77489788798477).

The spelling of 12434671155056 in words is "twelve trillion, four hundred thirty-four billion, six hundred seventy-one million, one hundred fifty-five thousand, fifty-six".