168156670153 has 4 divisors (see below), whose sum is σ = 172701445060. Its totient is φ = 163611895248.

The previous prime is 168156670141. The next prime is 168156670169. The reversal of 168156670153 is 351076651861.

168156670153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 159031071369 + 9125598784 = 398787^2 + 95528^2 .

It is a cyclic number.

It is not a de Polignac number, because 168156670153 - 2²¹ = 168154573001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168156670097 and 168156670106.

It is not an unprimeable number, because it can be changed into a prime (168156670183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2272387398 + ... + 2272387471.

It is an arithmetic number, because the mean of its divisors is an integer number (43175361265).

Almost surely, 2^168156670153 is an apocalyptic number.

It is an amenable number.

168156670153 is a deficient number, since it is larger than the sum of its proper divisors (4544774907).

168156670153 is an equidigital number, since it uses as much as digits as its factorization.

168156670153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4544774906.

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 168156670153 in words is "one hundred sixty-eight billion, one hundred fifty-six million, six hundred seventy thousand, one hundred fifty-three".