65785080810 has 32 divisors (see below), whose sum is σ = 158172869952. Its totient is φ = 17510613120.

The previous prime is 65785080799. The next prime is 65785080817. The reversal of 65785080810 is 1808058756.

It is a super-2 number, since 2×65785080810² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65785080810.

It is not an unprimeable number, because it can be changed into a prime (65785080817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1988011 + ... + 2020830.

It is an arithmetic number, because the mean of its divisors is an integer number (4942902186).

Almost surely, 2^65785080810 is an apocalyptic number.

65785080810 is an abundant number, since it is smaller than the sum of its proper divisors (92387789142).

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

65785080810 is a wasteful number, since it uses less digits than its factorization.

65785080810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4009398.

The product of its (nonzero) digits is 537600, while the sum is 48.

The spelling of 65785080810 in words is "sixty-five billion, seven hundred eighty-five million, eighty thousand, eight hundred ten".