56861416885536 has 144 divisors (see below), whose sum is σ = 167793306958368. Its totient is φ = 18941962752000.

The previous prime is 56861416885433. The next prime is 56861416885577. The reversal of 56861416885536 is 63558861416865.

56861416885536 is a `hidden beast` number, since 5 + 6 + 8 + 6 + 1 + 4 + 1 + 6 + 8 + 85 + 536 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10165671 + ... + 14733081.

It is an arithmetic number, because the mean of its divisors is an integer number (1165231298322).

Almost surely, 2^{56861416885536} 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 56861416885536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83896653479184).

56861416885536 is an abundant number, since it is smaller than the sum of its proper divisors (110931890072832).

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

56861416885536 is a wasteful number, since it uses less digits than its factorization.

56861416885536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4569037 (or 4569017 counting only the distinct ones).

The product of its digits is 995328000, while the sum is 72.

The spelling of 56861416885536 in words is "fifty-six trillion, eight hundred sixty-one billion, four hundred sixteen million, eight hundred eighty-five thousand, five hundred thirty-six".