2865165180 has 24 divisors (see below), whose sum is σ = 8022462672. Its totient is φ = 764044032.

The previous prime is 2865165179. The next prime is 2865165187. The reversal of 2865165180 is 815615682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2865165187) 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 7 ways as a sum of consecutive naturals, for example, 23876317 + ... + 23876436.

It is an arithmetic number, because the mean of its divisors is an integer number (334269278).

Almost surely, 2^2865165180 is an apocalyptic number.

2865165180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2865165180 is an abundant number, since it is smaller than the sum of its proper divisors (5157297492).

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

2865165180 is a wasteful number, since it uses less digits than its factorization.

2865165180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47752765 (or 47752763 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 42.

The square root of 2865165180 is about 53527.2377393043. The cubic root of 2865165180 is about 1420.3102509292.

The spelling of 2865165180 in words is "two billion, eight hundred sixty-five million, one hundred sixty-five thousand, one hundred eighty".