4155865168 has 40 divisors (see below), whose sum is σ = 9910143488. Its totient is φ = 1644077952.

The previous prime is 4155865121. The next prime is 4155865171. The reversal of 4155865168 is 8615685514.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1425696 + ... + 1428607.

Almost surely, 2^4155865168 is an apocalyptic number.

It is an amenable number.

4155865168 is an abundant number, since it is smaller than the sum of its proper divisors (5754278320).

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

4155865168 is a wasteful number, since it uses less digits than its factorization.

4155865168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854331 (or 2854325 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 49.

The square root of 4155865168 is about 64466.0000930723. Note that the first 4 decimals coincide. The cubic root of 4155865168 is about 1607.7572734125.

The spelling of 4155865168 in words is "four billion, one hundred fifty-five million, eight hundred sixty-five thousand, one hundred sixty-eight".