20004660017 has 8 divisors (see below), whose sum is σ = 21571136160. Its totient is φ = 18489543840.

The previous prime is 20004659989. The next prime is 20004660023. The reversal of 20004660017 is 71006640002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20004660017 - 2⁸ = 20004659761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20004660037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12839183 + ... + 12840740.

It is an arithmetic number, because the mean of its divisors is an integer number (2696392020).

Almost surely, 2^20004660017 is an apocalyptic number.

It is an amenable number.

20004660017 is a deficient number, since it is larger than the sum of its proper divisors (1566476143).

20004660017 is a wasteful number, since it uses less digits than its factorization.

20004660017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25679983.

The product of its (nonzero) digits is 2016, while the sum is 26.

The spelling of 20004660017 in words is "twenty billion, four million, six hundred sixty thousand, seventeen".