2165412718 has 16 divisors (see below), whose sum is σ = 3714597504. Its totient is φ = 927418680.

The previous prime is 2165412661. The next prime is 2165412719. The reversal of 2165412718 is 8172145612.

It is a super-2 number, since 2×2165412718² = 9378024478552295048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165412719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29080 + ... + 71947.

It is an arithmetic number, because the mean of its divisors is an integer number (232162344).

Almost surely, 2^2165412718 is an apocalyptic number.

2165412718 is a deficient number, since it is larger than the sum of its proper divisors (1549184786).

2165412718 is a wasteful number, since it uses less digits than its factorization.

2165412718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102567.

The product of its digits is 26880, while the sum is 37.

The square root of 2165412718 is about 46533.9952937635. The cubic root of 2165412718 is about 1293.7396677495.

The spelling of 2165412718 in words is "two billion, one hundred sixty-five million, four hundred twelve thousand, seven hundred eighteen".