32117201685 has 12 divisors (see below), whose sum is σ = 55669816332. Its totient is φ = 17129174208.

The previous prime is 32117201657. The next prime is 32117201689. The reversal of 32117201685 is 58610271123.

32117201685 is a `hidden beast` number, since 321 + 172 + 0 + 168 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3296367396 + 28820834289 = 57414^2 + 169767^2 .

It is not a de Polignac number, because 32117201685 - 2²¹ = 32115104533 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32117201689) 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, 356857752 + ... + 356857841.

It is an arithmetic number, because the mean of its divisors is an integer number (4639151361).

Almost surely, 2^32117201685 is an apocalyptic number.

It is an amenable number.

32117201685 is a deficient number, since it is larger than the sum of its proper divisors (23552614647).

32117201685 is a wasteful number, since it uses less digits than its factorization.

32117201685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713715604 (or 713715601 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 32117201685 in words is "thirty-two billion, one hundred seventeen million, two hundred one thousand, six hundred eighty-five".