65373665744 has 80 divisors (see below), whose sum is σ = 134436931200. Its totient is φ = 30742860288.

The previous prime is 65373665713. The next prime is 65373665771. The reversal of 65373665744 is 44756637356.

It is a self number, because there is not a number n which added to its sum of digits gives 65373665744.

It is a congruent number.

It is an unprimeable number.

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, 7757117 + ... + 7765539.

It is an arithmetic number, because the mean of its divisors is an integer number (1680461640).

Almost surely, 2^65373665744 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 65373665744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67218465600).

65373665744 is an abundant number, since it is smaller than the sum of its proper divisors (69063265456).

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

65373665744 is a wasteful number, since it uses less digits than its factorization.

65373665744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8892 (or 8886 counting only the distinct ones).

The product of its digits is 38102400, while the sum is 56.

The spelling of 65373665744 in words is "sixty-five billion, three hundred seventy-three million, six hundred sixty-five thousand, seven hundred forty-four".