65165752085868 has 144 divisors (see below), whose sum is σ = 204557275453440. Its totient is φ = 17069854982400.

The previous prime is 65165752085843. The next prime is 65165752085869. The reversal of 65165752085868 is 86858025756156.

65165752085868 is a `hidden beast` number, since 6 + 5 + 16 + 5 + 7 + 5 + 20 + 8 + 586 + 8 = 666.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 65165752085796 and 65165752085805.

It is not an unprimeable number, because it can be changed into a prime (65165752085869) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 219371313 + ... + 219668168.

Almost surely, 2^{65165752085868} is an apocalyptic number.

It is an amenable number.

65165752085868 is an abundant number, since it is smaller than the sum of its proper divisors (139391523367572).

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

65165752085868 is a wasteful number, since it uses less digits than its factorization.

65165752085868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439039548 (or 439039543 counting only the distinct ones).

The product of its (nonzero) digits is 967680000, while the sum is 72.

The spelling of 65165752085868 in words is "sixty-five trillion, one hundred sixty-five billion, seven hundred fifty-two million, eighty-five thousand, eight hundred sixty-eight".