2160018405 has 24 divisors (see below), whose sum is σ = 3745841112. Its totient is φ = 1151453184.

The previous prime is 2160018299. The next prime is 2160018463. The reversal of 2160018405 is 5048100612.

2160018405 is a `hidden beast` number, since 2 + 1 + 600 + 18 + 40 + 5 = 666.

2160018405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 259145604 + 1900872801 = 16098^2 + 43599^2 .

It is not a de Polignac number, because 2160018405 - 2⁷ = 2160018277 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92917 + ... + 113813.

It is an arithmetic number, because the mean of its divisors is an integer number (156076713).

Almost surely, 2^2160018405 is an apocalyptic number.

It is an amenable number.

2160018405 is a deficient number, since it is larger than the sum of its proper divisors (1585822707).

2160018405 is a wasteful number, since it uses less digits than its factorization.

2160018405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23205 (or 23202 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 2160018405 is about 46475.9981603408. The cubic root of 2160018405 is about 1292.6644855245.

The spelling of 2160018405 in words is "two billion, one hundred sixty million, eighteen thousand, four hundred five".