2162118465 has 48 divisors (see below), whose sum is σ = 4102185360. Its totient is φ = 1046960640.

The previous prime is 2162118443. The next prime is 2162118481. The reversal of 2162118465 is 5648112612.

It is a happy number.

2162118465 is a `hidden beast` number, since 21 + 62 + 118 + 465 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 267518736 + 1894599729 = 16356^2 + 43527^2 .

It is not a de Polignac number, because 2162118465 - 2⁶ = 2162118401 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5391 + ... + 65979.

It is an arithmetic number, because the mean of its divisors is an integer number (85462195).

Almost surely, 2^2162118465 is an apocalyptic number.

It is an amenable number.

2162118465 is a deficient number, since it is larger than the sum of its proper divisors (1940066895).

2162118465 is a wasteful number, since it uses less digits than its factorization.

2162118465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60674 (or 60671 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 2162118465 is about 46498.5856236510. The cubic root of 2162118465 is about 1293.0832772773.

It can be divided in two parts, 216211 and 8465, that added together give a square (224676 = 474²).

The spelling of 2162118465 in words is "two billion, one hundred sixty-two million, one hundred eighteen thousand, four hundred sixty-five".