201686701692 has 96 divisors (see below), whose sum is σ = 547109982720. Its totient is φ = 56632216320.

The previous prime is 201686701691. The next prime is 201686701709. The reversal of 201686701692 is 296107686102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201686701691) 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, 6281383 + ... + 6313409.

It is an arithmetic number, because the mean of its divisors is an integer number (5699062320).

Almost surely, 2^201686701692 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201686701692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273554991360).

201686701692 is an abundant number, since it is smaller than the sum of its proper divisors (345423281028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201686701692 is a wasteful number, since it uses less digits than its factorization.

201686701692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33331 (or 33329 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 201686701692 in words is "two hundred one billion, six hundred eighty-six million, seven hundred one thousand, six hundred ninety-two".