65165870968 has 32 divisors (see below), whose sum is σ = 133412094000. Its totient is φ = 29594568960.

The previous prime is 65165870947. The next prime is 65165870981. The reversal of 65165870968 is 86907856156.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228603 + ... + 427306.

Almost surely, 2^65165870968 is an apocalyptic number.

It is an amenable number.

65165870968 is an abundant number, since it is smaller than the sum of its proper divisors (68246223032).

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

65165870968 is a wasteful number, since it uses less digits than its factorization.

65165870968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657055 (or 657051 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 61.

The spelling of 65165870968 in words is "sixty-five billion, one hundred sixty-five million, eight hundred seventy thousand, nine hundred sixty-eight".