170339340491 has 4 divisors (see below), whose sum is σ = 171204007392. Its totient is φ = 169474673592.

The previous prime is 170339340461. The next prime is 170339340497. The reversal of 170339340491 is 194043933071.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 194043933071 = 6229 ⋅31151699.

It is a cyclic number.

It is not a de Polignac number, because 170339340491 - 2³⁴ = 153159471307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (170339340497) 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, 432333155 + ... + 432333548.

It is an arithmetic number, because the mean of its divisors is an integer number (42801001848).

Almost surely, 2^170339340491 is an apocalyptic number.

170339340491 is a deficient number, since it is larger than the sum of its proper divisors (864666901).

170339340491 is an equidigital number, since it uses as much as digits as its factorization.

170339340491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864666900.

The product of its (nonzero) digits is 244944, while the sum is 44.

The spelling of 170339340491 in words is "one hundred seventy billion, three hundred thirty-nine million, three hundred forty thousand, four hundred ninety-one".