56220042456 has 96 divisors (see below), whose sum is σ = 158944032000. Its totient is φ = 17918315712.

The previous prime is 56220042451. The next prime is 56220042469. The reversal of 56220042456 is 65424002265.

56220042456 is a `hidden beast` number, since 5 + 6 + 220 + 0 + 424 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 56220042456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56220042451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5888935 + ... + 5898473.

It is an arithmetic number, because the mean of its divisors is an integer number (1655667000).

Almost surely, 2^56220042456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56220042456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79472016000).

56220042456 is an abundant number, since it is smaller than the sum of its proper divisors (102723989544).

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

56220042456 is a wasteful number, since it uses less digits than its factorization.

56220042456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13133 (or 13126 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 56220042456 in words is "fifty-six billion, two hundred twenty million, forty-two thousand, four hundred fifty-six".