55556671729968 has 120 divisors (see below), whose sum is σ = 155781327356928. Its totient is φ = 18483209559936.

The previous prime is 55556671729967. The next prime is 55556671730003. The reversal of 55556671729968 is 86992717665555.

55556671729968 is a `hidden beast` number, since 55 + 556 + 6 + 7 + 1 + 7 + 2 + 9 + 9 + 6 + 8 = 666.

55556671729968 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 2×55556671729968² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55556671729967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190700671 + ... + 190991777.

Almost surely, 2^{55556671729968} is an apocalyptic number.

It is an amenable number.

55556671729968 is an abundant number, since it is smaller than the sum of its proper divisors (100224655626960).

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

55556671729968 is a wasteful number, since it uses less digits than its factorization.

55556671729968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293671 (or 293662 counting only the distinct ones).

The product of its digits is 8573040000, while the sum is 81.

The spelling of 55556671729968 in words is "fifty-five trillion, five hundred fifty-six billion, six hundred seventy-one million, seven hundred twenty-nine thousand, nine hundred sixty-eight".