123546553546156 has 24 divisors (see below), whose sum is σ = 239130647304080. Its totient is φ = 55480365001152.

The previous prime is 123546553546139. The next prime is 123546553546181. The reversal of 123546553546156 is 651645355645321.

It is a junction number, because it is equal to n+sod(n) for n = 123546553546094 and 123546553546103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32106690786 + ... + 32106694633.

Almost surely, 2^{123546553546156} is an apocalyptic number.

It is an amenable number.

123546553546156 is a deficient number, since it is larger than the sum of its proper divisors (115584093757924).

123546553546156 is a wasteful number, since it uses less digits than its factorization.

123546553546156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64213385473 (or 64213385471 counting only the distinct ones).

The product of its digits is 194400000, while the sum is 61.

The spelling of 123546553546156 in words is "one hundred twenty-three trillion, five hundred forty-six billion, five hundred fifty-three million, five hundred forty-six thousand, one hundred fifty-six".