65968188 has 96 divisors (see below), whose sum is σ = 185902080. Its totient is φ = 17936640.

The previous prime is 65968181. The next prime is 65968223. The reversal of 65968188 is 88186956.

It is a self number, because there is not a number n which added to its sum of digits gives 65968188.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65968181) 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, 62973 + ... + 64011.

It is an arithmetic number, because the mean of its divisors is an integer number (1936480).

Almost surely, 2^65968188 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 65968188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92951040).

65968188 is an abundant number, since it is smaller than the sum of its proper divisors (119933892).

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

65968188 is a wasteful number, since it uses less digits than its factorization.

65968188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107 (or 1105 counting only the distinct ones).

The product of its digits is 829440, while the sum is 51.

The square root of 65968188 is about 8122.0802753974. The cubic root of 65968188 is about 404.0590623711.

The spelling of 65968188 in words is "sixty-five million, nine hundred sixty-eight thousand, one hundred eighty-eight".