201715670017 has 4 divisors (see below), whose sum is σ = 202729316800. Its totient is φ = 200702023236.

The previous prime is 201715669979. The next prime is 201715670027. The reversal of 201715670017 is 710076517102.

201715670017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201715670017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201715670027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506823093 + ... + 506823490.

It is an arithmetic number, because the mean of its divisors is an integer number (50682329200).

Almost surely, 2^201715670017 is an apocalyptic number.

It is an amenable number.

201715670017 is a deficient number, since it is larger than the sum of its proper divisors (1013646783).

201715670017 is a wasteful number, since it uses less digits than its factorization.

201715670017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013646782.

The product of its (nonzero) digits is 20580, while the sum is 37.

The spelling of 201715670017 in words is "two hundred one billion, seven hundred fifteen million, six hundred seventy thousand, seventeen".