170163795253 has 4 divisors (see below), whose sum is σ = 170195098060. Its totient is φ = 170132492448.

The previous prime is 170163795223. The next prime is 170163795259. The reversal of 170163795253 is 352597361071.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 352597361071 = 269 ⋅1310770859.

It can be written as a sum of positive squares in 2 ways, for example, as 102975526404 + 67188268849 = 320898^2 + 259207^2 .

It is a cyclic number.

It is not a de Polignac number, because 170163795253 - 2²⁵ = 170130240821 is a prime.

It is a super-3 number, since 3×170163795253³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 170163795197 and 170163795206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170163795259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15643248 + ... + 15654121.

It is an arithmetic number, because the mean of its divisors is an integer number (42548774515).

Almost surely, 2^170163795253 is an apocalyptic number.

It is an amenable number.

170163795253 is a deficient number, since it is larger than the sum of its proper divisors (31302807).

170163795253 is an equidigital number, since it uses as much as digits as its factorization.

170163795253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31302806.

The product of its (nonzero) digits is 1190700, while the sum is 49.

The spelling of 170163795253 in words is "one hundred seventy billion, one hundred sixty-three million, seven hundred ninety-five thousand, two hundred fifty-three".