201717604001 has 4 divisors (see below), whose sum is σ = 206637545604. Its totient is φ = 196797662400.

The previous prime is 201717603991. The next prime is 201717604063. The reversal of 201717604001 is 100406717102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23924664976 + 177792939025 = 154676^2 + 421655^2 .

It is a cyclic number.

It is not a de Polignac number, because 201717604001 - 2⁶ = 201717603937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201717600001) 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, 2459970740 + ... + 2459970821.

It is an arithmetic number, because the mean of its divisors is an integer number (51659386401).

Almost surely, 2^201717604001 is an apocalyptic number.

It is an amenable number.

201717604001 is a deficient number, since it is larger than the sum of its proper divisors (4919941603).

201717604001 is an equidigital number, since it uses as much as digits as its factorization.

201717604001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4919941602.

The product of its (nonzero) digits is 2352, while the sum is 29.

The spelling of 201717604001 in words is "two hundred one billion, seven hundred seventeen million, six hundred four thousand, one".