158170200817 has 4 divisors (see below), whose sum is σ = 159117327936. Its totient is φ = 157223073700.

The previous prime is 158170200791. The next prime is 158170200821. The reversal of 158170200817 is 718002071851.

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: 718002071851 = 19 ⋅37789582729.

It is a cyclic number.

It is not a de Polignac number, because 158170200817 - 2⁷ = 158170200689 is a prime.

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 158170200817.

It is not an unprimeable number, because it can be changed into a prime (158170200887) 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, 473563309 + ... + 473563642.

It is an arithmetic number, because the mean of its divisors is an integer number (39779331984).

Almost surely, 2^158170200817 is an apocalyptic number.

It is an amenable number.

158170200817 is a deficient number, since it is larger than the sum of its proper divisors (947127119).

158170200817 is an equidigital number, since it uses as much as digits as its factorization.

158170200817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947127118.

The product of its (nonzero) digits is 31360, while the sum is 40.

The spelling of 158170200817 in words is "one hundred fifty-eight billion, one hundred seventy million, two hundred thousand, eight hundred seventeen".