158518814513 has 4 divisors (see below), whose sum is σ = 160088307828. Its totient is φ = 156949321200.

The previous prime is 158518814491. The next prime is 158518814521. The reversal of 158518814513 is 315418815851.

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

It can be written as a sum of positive squares in 2 ways, for example, as 148158017569 + 10360796944 = 384913^2 + 101788^2 .

It is a cyclic number.

It is not a de Polignac number, because 158518814513 - 2¹⁸ = 158518552369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158518814593) 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, 784746506 + ... + 784746707.

It is an arithmetic number, because the mean of its divisors is an integer number (40022076957).

Almost surely, 2^158518814513 is an apocalyptic number.

It is an amenable number.

158518814513 is a deficient number, since it is larger than the sum of its proper divisors (1569493315).

158518814513 is a wasteful number, since it uses less digits than its factorization.

158518814513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569493314.

The product of its digits is 768000, while the sum is 50.

The spelling of 158518814513 in words is "one hundred fifty-eight billion, five hundred eighteen million, eight hundred fourteen thousand, five hundred thirteen".