158179546481 has 4 divisors (see below), whose sum is σ = 172559505264. Its totient is φ = 143799587700.

The previous prime is 158179546433. The next prime is 158179546487. The reversal of 158179546481 is 184645971851.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 184645971851 = 11 ⋅16785997441.

It is a cyclic number.

It is not a de Polignac number, because 158179546481 - 2¹⁰ = 158179545457 is a prime.

It is a super-2 number, since 2×158179546481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 158179546481.

It is not an unprimeable number, because it can be changed into a prime (158179546487) 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, 7189979375 + ... + 7189979396.

It is an arithmetic number, because the mean of its divisors is an integer number (43139876316).

Almost surely, 2^158179546481 is an apocalyptic number.

158179546481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

158179546481 is a deficient number, since it is larger than the sum of its proper divisors (14379958783).

158179546481 is a wasteful number, since it uses less digits than its factorization.

158179546481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14379958782.

The product of its digits is 9676800, while the sum is 59.

The spelling of 158179546481 in words is "one hundred fifty-eight billion, one hundred seventy-nine million, five hundred forty-six thousand, four hundred eighty-one".