163158039171 has 6 divisors (see below), whose sum is σ = 235672723260. Its totient is φ = 108772026108.

The previous prime is 163158039167. The next prime is 163158039173. The reversal of 163158039171 is 171930851361.

163158039171 is a `hidden beast` number, since 1 + 6 + 31 + 580 + 39 + 1 + 7 + 1 = 666.

It is not a de Polignac number, because 163158039171 - 2² = 163158039167 is a prime.

It is a super-2 number, since 2×163158039171² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163158039173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9064335501 + ... + 9064335518.

It is an arithmetic number, because the mean of its divisors is an integer number (39278787210).

Almost surely, 2^163158039171 is an apocalyptic number.

163158039171 is a deficient number, since it is larger than the sum of its proper divisors (72514684089).

163158039171 is a wasteful number, since it uses less digits than its factorization.

163158039171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18128671025 (or 18128671022 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The spelling of 163158039171 in words is "one hundred sixty-three billion, one hundred fifty-eight million, thirty-nine thousand, one hundred seventy-one".