4155664056 has 64 divisors (see below), whose sum is σ = 10591862400. Its totient is φ = 1358313600.

The previous prime is 4155664027. The next prime is 4155664067. The reversal of 4155664056 is 6504665514.

It is a super-2 number, since 2×4155664056² = 34539087492660742272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4155663999 and 4155664017.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 592651 + ... + 599621.

It is an arithmetic number, because the mean of its divisors is an integer number (165497850).

Almost surely, 2^4155664056 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 4155664056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5295931200).

4155664056 is an abundant number, since it is smaller than the sum of its proper divisors (6436198344).

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

4155664056 is a wasteful number, since it uses less digits than its factorization.

4155664056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7460 (or 7456 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The square root of 4155664056 is about 64464.4402442153. The cubic root of 4155664056 is about 1607.7313386205.

The spelling of 4155664056 in words is "four billion, one hundred fifty-five million, six hundred sixty-four thousand, fifty-six".