56705805000 has 640 divisors, whose sum is σ = 215181120000. Its totient is φ = 13747968000.

The previous prime is 56705804989. The next prime is 56705805041. The reversal of 56705805000 is 50850765.

56705805000 is a `hidden beast` number, since 5 + 6 + 70 + 5 + 80 + 500 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 138644796 + ... + 138645204.

It is an arithmetic number, because the mean of its divisors is an integer number (336220500).

Almost surely, 2^56705805000 is an apocalyptic number.

56705805000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56705805000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107590560000).

56705805000 is an abundant number, since it is smaller than the sum of its proper divisors (158475315000).

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

56705805000 is a wasteful number, since it uses less digits than its factorization.

56705805000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The spelling of 56705805000 in words is "fifty-six billion, seven hundred five million, eight hundred five thousand".