158717144443 has 32 divisors (see below), whose sum is σ = 187484371200. Its totient is φ = 132462345600.

The previous prime is 158717144441. The next prime is 158717144513. The reversal of 158717144443 is 344441717851.

It is a happy number.

It is not a de Polignac number, because 158717144443 - 2¹ = 158717144441 is a prime.

It is a super-2 number, since 2×158717144443² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158717144441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38344668 + ... + 38348806.

It is an arithmetic number, because the mean of its divisors is an integer number (5858886600).

Almost surely, 2^158717144443 is an apocalyptic number.

158717144443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

158717144443 is a deficient number, since it is larger than the sum of its proper divisors (28767226757).

158717144443 is a wasteful number, since it uses less digits than its factorization.

158717144443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5563.

The product of its digits is 1505280, while the sum is 49.

The spelling of 158717144443 in words is "one hundred fifty-eight billion, seven hundred seventeen million, one hundred forty-four thousand, four hundred forty-three".