65013784164664 has 8 divisors (see below), whose sum is σ = 121900845308760. Its totient is φ = 32506892082328.

The previous prime is 65013784164661. The next prime is 65013784164673. The reversal of 65013784164664 is 46646148731056.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65013784164661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4063361510284 + ... + 4063361510299.

It is an arithmetic number, because the mean of its divisors is an integer number (15237605663595).

Almost surely, 2^{65013784164664} is an apocalyptic number.

It is an amenable number.

65013784164664 is a deficient number, since it is larger than the sum of its proper divisors (56887061144096).

65013784164664 is a wasteful number, since it uses less digits than its factorization.

65013784164664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8126723020589 (or 8126723020585 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 61.

The spelling of 65013784164664 in words is "sixty-five trillion, thirteen billion, seven hundred eighty-four million, one hundred sixty-four thousand, six hundred sixty-four".