56180817076842 has 112 divisors (see below), whose sum is σ = 129305737566720. Its totient is φ = 18288832919616.

The previous prime is 56180817076841. The next prime is 56180817076843. The reversal of 56180817076842 is 24867071808165.

It is a happy number.

56180817076842 is a `hidden beast` number, since 5 + 618 + 0 + 8 + 1 + 7 + 0 + 7 + 6 + 8 + 4 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (56180817076841) and next prime (56180817076843).

It is a self number, because there is not a number n which added to its sum of digits gives 56180817076842.

It is not an unprimeable number, because it can be changed into a prime (56180817076841) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 469330134 + ... + 469449822.

Almost surely, 2^{56180817076842} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56180817076842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64652868783360).

56180817076842 is an abundant number, since it is smaller than the sum of its proper divisors (73124920489878).

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

56180817076842 is a wasteful number, since it uses less digits than its factorization.

56180817076842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127239 (or 127224 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 63.

The spelling of 56180817076842 in words is "fifty-six trillion, one hundred eighty billion, eight hundred seventeen million, seventy-six thousand, eight hundred forty-two".