171134730722 has 18 divisors (see below), whose sum is σ = 272706310497. Its totient is φ = 80529310624.

The previous prime is 171134730713. The next prime is 171134730733. The reversal of 171134730722 is 227037431171.

It is a happy number.

171134730722 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 2 ways, for example, as 156626769121 + 14507961601 = 395761^2 + 120449^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=292519.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 9937043 + ... + 9954249.

Almost surely, 2^171134730722 is an apocalyptic number.

171134730722 is a deficient number, since it is larger than the sum of its proper divisors (101571579775).

171134730722 is an frugal number, since it uses more digits than its factorization.

171134730722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34450 (or 17226 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 38.

The spelling of 171134730722 in words is "one hundred seventy-one billion, one hundred thirty-four million, seven hundred thirty thousand, seven hundred twenty-two".