20201686336117 has 32 divisors (see below), whose sum is σ = 23794999530624. Its totient is φ = 16908556204800.

The previous prime is 20201686336109. The next prime is 20201686336127. The reversal of 20201686336117 is 71163368610202.

It is not a de Polignac number, because 20201686336117 - 2³ = 20201686336109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201686336127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86542443 + ... + 86775559.

It is an arithmetic number, because the mean of its divisors is an integer number (743593735332).

Almost surely, 2^{20201686336117} is an apocalyptic number.

It is an amenable number.

20201686336117 is a deficient number, since it is larger than the sum of its proper divisors (3593313194507).

20201686336117 is a wasteful number, since it uses less digits than its factorization.

20201686336117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234709.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 20201686336117 in words is "twenty trillion, two hundred one billion, six hundred eighty-six million, three hundred thirty-six thousand, one hundred seventeen".