162645165 has 20 divisors (see below), whose sum is σ = 291557244. Its totient is φ = 86743872.

The previous prime is 162645107. The next prime is 162645169. The reversal of 162645165 is 561546261.

162645165 is a `hidden beast` number, since 1 + 6 + 2 + 645 + 1 + 6 + 5 = 666.

162645165 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 2 ways, for example, as 109369764 + 53275401 = 10458^2 + 7299^2 .

It is not a de Polignac number, because 162645165 - 2⁶ = 162645101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162645169) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 200392 + ... + 201201.

Almost surely, 2^162645165 is an apocalyptic number.

162645165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

162645165 is a deficient number, since it is larger than the sum of its proper divisors (128912079).

162645165 is an equidigital number, since it uses as much as digits as its factorization.

162645165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401610 (or 401601 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 162645165 is about 12753.2413526915. The cubic root of 162645165 is about 545.8588875760.

The spelling of 162645165 in words is "one hundred sixty-two million, six hundred forty-five thousand, one hundred sixty-five".