201670017017 has 12 divisors (see below), whose sum is σ = 234603135360. Its totient is φ = 172854561096.

The previous prime is 201670017013. The next prime is 201670017019. The reversal of 201670017017 is 710710076102.

It is a happy number.

It is not a de Polignac number, because 201670017017 - 2² = 201670017013 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201670017011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2655548 + ... + 2730434.

It is an arithmetic number, because the mean of its divisors is an integer number (19550261280).

Almost surely, 2^201670017017 is an apocalyptic number.

It is an amenable number.

201670017017 is a deficient number, since it is larger than the sum of its proper divisors (32933118343).

201670017017 is an equidigital number, since it uses as much as digits as its factorization.

201670017017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129860 (or 129853 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 32.

The spelling of 201670017017 in words is "two hundred one billion, six hundred seventy million, seventeen thousand, seventeen".