65596773760 has 256 divisors, whose sum is σ = 185765990400. Its totient is φ = 21674926080.

The previous prime is 65596773757. The next prime is 65596773769. The reversal of 65596773760 is 6737769556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65596773769) 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 31 ways as a sum of consecutive naturals, for example, 39302206 + ... + 39303874.

It is an arithmetic number, because the mean of its divisors is an integer number (725648400).

Almost surely, 2^65596773760 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 65596773760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92882995200).

65596773760 is an abundant number, since it is smaller than the sum of its proper divisors (120169216640).

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

65596773760 is a wasteful number, since it uses less digits than its factorization.

65596773760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009 (or 1997 counting only the distinct ones).

The product of its (nonzero) digits is 50009400, while the sum is 61.

The spelling of 65596773760 in words is "sixty-five billion, five hundred ninety-six million, seven hundred seventy-three thousand, seven hundred sixty".