65504262112240 has 120 divisors (see below), whose sum is σ = 177167769711120. Its totient is φ = 22457909827584.

The previous prime is 65504262112213. The next prime is 65504262112253. The reversal of 65504262112240 is 4221126240556.

65504262112240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 65504262112193 and 65504262112202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135677191 + ... + 136159129.

It is an arithmetic number, because the mean of its divisors is an integer number (1476398080926).

Almost surely, 2^{65504262112240} is an apocalyptic number.

It is an amenable number.

65504262112240 is an abundant number, since it is smaller than the sum of its proper divisors (111663507598880).

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

65504262112240 is a wasteful number, since it uses less digits than its factorization.

65504262112240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516639 (or 516626 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

Adding to 65504262112240 its reverse (4221126240556), we get a palindrome (69725388352796).

The spelling of 65504262112240 in words is "sixty-five trillion, five hundred four billion, two hundred sixty-two million, one hundred twelve thousand, two hundred forty".