123471605556 has 96 divisors (see below), whose sum is σ = 348082891520. Its totient is φ = 37622371968.

The previous prime is 123471605473. The next prime is 123471605563. The reversal of 123471605556 is 655506174321.

123471605556 is a `hidden beast` number, since 1 + 2 + 34 + 7 + 1 + 60 + 5 + 556 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282295 + ... + 571518.

Almost surely, 2^123471605556 is an apocalyptic number.

It is an amenable number.

123471605556 is an abundant number, since it is smaller than the sum of its proper divisors (224611285964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123471605556 is a wasteful number, since it uses less digits than its factorization.

123471605556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853942 (or 853934 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

Adding to 123471605556 its reverse (655506174321), we get a palindrome (778977779877).

The spelling of 123471605556 in words is "one hundred twenty-three billion, four hundred seventy-one million, six hundred five thousand, five hundred fifty-six".