56817562340 has 96 divisors (see below), whose sum is σ = 148867891200. Its totient is φ = 17696373120.

The previous prime is 56817562339. The next prime is 56817562343. The reversal of 56817562340 is 4326571865.

It is not an unprimeable number, because it can be changed into a prime (56817562343) 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 31 ways as a sum of consecutive naturals, for example, 2203241 + ... + 2228879.

It is an arithmetic number, because the mean of its divisors is an integer number (1550707200).

Almost surely, 2^56817562340 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 56817562340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74433945600).

56817562340 is an abundant number, since it is smaller than the sum of its proper divisors (92050328860).

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

56817562340 is a wasteful number, since it uses less digits than its factorization.

56817562340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27105 (or 27103 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 56817562340 in words is "fifty-six billion, eight hundred seventeen million, five hundred sixty-two thousand, three hundred forty".