2162845625805 has 24 divisors (see below), whose sum is σ = 3791055261240. Its totient is φ = 1140556792320.

The previous prime is 2162845625791. The next prime is 2162845625839. The reversal of 2162845625805 is 5085265482612.

2162845625805 is a `hidden beast` number, since 2 + 1 + 6 + 2 + 8 + 4 + 5 + 625 + 8 + 0 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 320153404041 + 1842692221764 = 565821^2 + 1357458^2 .

It is not a de Polignac number, because 2162845625805 - 2¹⁰ = 2162845624781 is a prime.

It is a Curzon number.

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, 270014176 + ... + 270022185.

It is an arithmetic number, because the mean of its divisors is an integer number (157960635885).

Almost surely, 2^{2162845625805} is an apocalyptic number.

It is an amenable number.

2162845625805 is a deficient number, since it is larger than the sum of its proper divisors (1628209635435).

2162845625805 is a wasteful number, since it uses less digits than its factorization.

2162845625805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540036461 (or 540036458 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 54.

The spelling of 2162845625805 in words is "two trillion, one hundred sixty-two billion, eight hundred forty-five million, six hundred twenty-five thousand, eight hundred five".