201695868 has 108 divisors (see below), whose sum is σ = 590142280. Its totient is φ = 57879360.

The previous prime is 201695867. The next prime is 201695869. The reversal of 201695868 is 868596102.

201695868 is a `hidden beast` number, since 2 + 0 + 1 + 69 + 586 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (201695867) and next prime (201695869).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201695867) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 81546 + ... + 83982.

Almost surely, 2^201695868 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 201695868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295071140).

201695868 is an abundant number, since it is smaller than the sum of its proper divisors (388446412).

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

201695868 is a wasteful number, since it uses less digits than its factorization.

201695868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2488 (or 2472 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 201695868 is about 14201.9670468566. The cubic root of 201695868 is about 586.4518136858.

The spelling of 201695868 in words is "two hundred one million, six hundred ninety-five thousand, eight hundred sixty-eight".