4055644656 has 120 divisors (see below), whose sum is σ = 12994641504. Its totient is φ = 1156700160.

The previous prime is 4055644651. The next prime is 4055644667. The reversal of 4055644656 is 6564465504.

4055644656 is a `hidden beast` number, since 4 + 0 + 556 + 4 + 46 + 56 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4055644651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 618676 + ... + 625196.

Almost surely, 2^4055644656 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 4055644656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6497320752).

4055644656 is an abundant number, since it is smaller than the sum of its proper divisors (8938996848).

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

4055644656 is a wasteful number, since it uses less digits than its factorization.

4055644656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7159 (or 7150 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 45.

The square root of 4055644656 is about 63683.9434708624. The cubic root of 4055644656 is about 1594.7280460591.

The spelling of 4055644656 in words is "four billion, fifty-five million, six hundred forty-four thousand, six hundred fifty-six".