158579463641 has 4 divisors (see below), whose sum is σ = 158594850612. Its totient is φ = 158564076672.

The previous prime is 158579463571. The next prime is 158579463649. The reversal of 158579463641 is 146364975851.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146364975851 = 1049 ⋅139528099.

It can be written as a sum of positive squares in 2 ways, for example, as 67498638025 + 91080825616 = 259805^2 + 301796^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158579463641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158579463649) 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, 7678016 + ... + 7698641.

It is an arithmetic number, because the mean of its divisors is an integer number (39648712653).

Almost surely, 2^158579463641 is an apocalyptic number.

It is an amenable number.

158579463641 is a deficient number, since it is larger than the sum of its proper divisors (15386971).

158579463641 is a wasteful number, since it uses less digits than its factorization.

158579463641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15386970.

The product of its digits is 21772800, while the sum is 59.

The spelling of 158579463641 in words is "one hundred fifty-eight billion, five hundred seventy-nine million, four hundred sixty-three thousand, six hundred forty-one".