163456165 has 8 divisors (see below), whose sum is σ = 196293240. Its totient is φ = 130667712.

The previous prime is 163456157. The next prime is 163456169. The reversal of 163456165 is 561654361.

163456165 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 12510369 + 150945796 = 3537^2 + 12286^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163456165 - 2³ = 163456157 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163456169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4294 + ... + 18583.

It is an arithmetic number, because the mean of its divisors is an integer number (24536655).

Almost surely, 2^163456165 is an apocalyptic number.

It is an amenable number.

163456165 is a deficient number, since it is larger than the sum of its proper divisors (32837075).

163456165 is a wasteful number, since it uses less digits than its factorization.

163456165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24311.

The product of its digits is 64800, while the sum is 37.

The square root of 163456165 is about 12784.9976535000. The cubic root of 163456165 is about 546.7646585110.

The spelling of 163456165 in words is "one hundred sixty-three million, four hundred fifty-six thousand, one hundred sixty-five".