165625034163 has 8 divisors (see below), whose sum is σ = 223110012048. Its totient is φ = 109278372864.

The previous prime is 165625034153. The next prime is 165625034191. The reversal of 165625034163 is 361430526561.

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

It is not a de Polignac number, because 165625034163 - 2⁵ = 165625034131 is a prime.

It is a super-2 number, since 2×165625034163² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (165625034153) by changing a digit.

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, 284578806 + ... + 284579387.

It is an arithmetic number, because the mean of its divisors is an integer number (27888751506).

Almost surely, 2^165625034163 is an apocalyptic number.

165625034163 is a deficient number, since it is larger than the sum of its proper divisors (57484977885).

165625034163 is an equidigital number, since it uses as much as digits as its factorization.

165625034163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569158293.

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 165625034163 in words is "one hundred sixty-five billion, six hundred twenty-five million, thirty-four thousand, one hundred sixty-three".