170940169317 has 4 divisors (see below), whose sum is σ = 227920225760. Its totient is φ = 113960112876.

The previous prime is 170940169291. The next prime is 170940169319. The reversal of 170940169317 is 713961049071.

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.

It is not a de Polignac number, because 170940169317 - 2⁸ = 170940169061 is a prime.

It is a super-2 number, since 2×170940169317² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170940169319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28490028217 + ... + 28490028222.

It is an arithmetic number, because the mean of its divisors is an integer number (56980056440).

Almost surely, 2^170940169317 is an apocalyptic number.

It is an amenable number.

170940169317 is a deficient number, since it is larger than the sum of its proper divisors (56980056443).

170940169317 is an equidigital number, since it uses as much as digits as its factorization.

170940169317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56980056442.

The product of its (nonzero) digits is 285768, while the sum is 48.

The spelling of 170940169317 in words is "one hundred seventy billion, nine hundred forty million, one hundred sixty-nine thousand, three hundred seventeen".