56005920029856 has 48 divisors (see below), whose sum is σ = 147023658532800. Its totient is φ = 18667609095168.

The previous prime is 56005920029797. The next prime is 56005920029911. The reversal of 56005920029856 is 65892002950065.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 56005920029796 and 56005920029805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14359561 + ... + 17838408.

It is an arithmetic number, because the mean of its divisors is an integer number (3062992886100).

Almost surely, 2^{56005920029856} is an apocalyptic number.

It is an amenable number.

56005920029856 is an abundant number, since it is smaller than the sum of its proper divisors (91017738502944).

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

56005920029856 is a wasteful number, since it uses less digits than its factorization.

56005920029856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32216101 (or 32216093 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 57.

The spelling of 56005920029856 in words is "fifty-six trillion, five billion, nine hundred twenty million, twenty-nine thousand, eight hundred fifty-six".