163040165 has 8 divisors (see below), whose sum is σ = 196174968. Its totient is φ = 130080960.

The previous prime is 163040113. The next prime is 163040179. The reversal of 163040165 is 561040361.

It can be written as a sum of positive squares in 4 ways, for example, as 34739236 + 128300929 = 5894^2 + 11327^2 .

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

It is not a de Polignac number, because 163040165 - 2²⁶ = 95931301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41846 + ... + 45575.

It is an arithmetic number, because the mean of its divisors is an integer number (24521871).

Almost surely, 2^163040165 is an apocalyptic number.

It is an amenable number.

163040165 is a deficient number, since it is larger than the sum of its proper divisors (33134803).

163040165 is an equidigital number, since it uses as much as digits as its factorization.

163040165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87799.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 163040165 is about 12768.7182207142. The cubic root of 163040165 is about 546.3004212439.

The spelling of 163040165 in words is "one hundred sixty-three million, forty thousand, one hundred sixty-five".