65016764135840 has 48 divisors (see below), whose sum is σ = 167565933027360. Its totient is φ = 23642459685120.

The previous prime is 65016764135777. The next prime is 65016764135849. The reversal of 65016764135840 is 4853146761056.

It is not an unprimeable number, because it can be changed into a prime (65016764135849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18470669870 + ... + 18470673389.

It is an arithmetic number, because the mean of its divisors is an integer number (3490956938070).

Almost surely, 2^{65016764135840} is an apocalyptic number.

It is an amenable number.

65016764135840 is an abundant number, since it is smaller than the sum of its proper divisors (102549168891520).

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

65016764135840 is a wasteful number, since it uses less digits than its factorization.

65016764135840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36941343285 (or 36941343277 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 56.

The spelling of 65016764135840 in words is "sixty-five trillion, sixteen billion, seven hundred sixty-four million, one hundred thirty-five thousand, eight hundred forty".