5656256340 has 96 divisors (see below), whose sum is σ = 18266223360. Its totient is φ = 1280987136.

The previous prime is 5656256327. The next prime is 5656256351. The reversal of 5656256340 is 436526565.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 5656256292 and 5656256301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15997 + ... + 107556.

It is an arithmetic number, because the mean of its divisors is an integer number (190273160).

Almost surely, 2^5656256340 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 5656256340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9133111680).

5656256340 is an abundant number, since it is smaller than the sum of its proper divisors (12609967020).

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

5656256340 is a wasteful number, since it uses less digits than its factorization.

5656256340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123681 (or 123679 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

The square root of 5656256340 is about 75208.0869321910. The cubic root of 5656256340 is about 1781.7346575058.

The spelling of 5656256340 in words is "five billion, six hundred fifty-six million, two hundred fifty-six thousand, three hundred forty".