163871568501355 has 32 divisors (see below), whose sum is σ = 231032202867648. Its totient is φ = 110008030003200.

The previous prime is 163871568501349. The next prime is 163871568501367. The reversal of 163871568501355 is 553105865178361.

It is not a de Polignac number, because 163871568501355 - 2⁷ = 163871568501227 is a prime.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17832907 + ... + 25411723.

It is an arithmetic number, because the mean of its divisors is an integer number (7219756339614).

Almost surely, 2^{163871568501355} is an apocalyptic number.

163871568501355 is a deficient number, since it is larger than the sum of its proper divisors (67160634366293).

163871568501355 is a wasteful number, since it uses less digits than its factorization.

163871568501355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7609087.

The product of its (nonzero) digits is 90720000, while the sum is 64.

The spelling of 163871568501355 in words is "one hundred sixty-three trillion, eight hundred seventy-one billion, five hundred sixty-eight million, five hundred one thousand, three hundred fifty-five".