158120244871171 has 4 divisors (see below), whose sum is σ = 172494812586744. Its totient is φ = 143745677155600.

The previous prime is 158120244871159. The next prime is 158120244871241. The reversal of 158120244871171 is 171178442021851.

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

It is a cyclic number.

It is not a de Polignac number, because 158120244871171 - 2²³ = 158120236482563 is a prime.

It is a super-2 number, since 2×158120244871171² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158120244871111) 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, 7187283857770 + ... + 7187283857791.

It is an arithmetic number, because the mean of its divisors is an integer number (43123703146686).

Almost surely, 2^{158120244871171} is an apocalyptic number.

158120244871171 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

158120244871171 is a deficient number, since it is larger than the sum of its proper divisors (14374567715573).

158120244871171 is a wasteful number, since it uses less digits than its factorization.

158120244871171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14374567715572.

The product of its (nonzero) digits is 1003520, while the sum is 52.

The spelling of 158120244871171 in words is "one hundred fifty-eight trillion, one hundred twenty billion, two hundred forty-four million, eight hundred seventy-one thousand, one hundred seventy-one".