65036640101868 has 72 divisors (see below), whose sum is σ = 165838628487168. Its totient is φ = 21489624463968.

The previous prime is 65036640101863. The next prime is 65036640101869. The reversal of 65036640101868 is 86810104663056.

65036640101868 is a `hidden beast` number, since 6 + 50 + 3 + 6 + 6 + 401 + 0 + 186 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (65036640101861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12221580 + ... + 16716467.

It is an arithmetic number, because the mean of its divisors is an integer number (2303314284544).

Almost surely, 2^{65036640101868} is an apocalyptic number.

It is an amenable number.

65036640101868 is an abundant number, since it is smaller than the sum of its proper divisors (100801988385300).

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

65036640101868 is a wasteful number, since it uses less digits than its factorization.

65036640101868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28938603 (or 28938598 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 65036640101868 in words is "sixty-five trillion, thirty-six billion, six hundred forty million, one hundred one thousand, eight hundred sixty-eight".