65644708248 has 96 divisors (see below), whose sum is σ = 208677574560. Its totient is φ = 18248716800.

The previous prime is 65644708229. The next prime is 65644708279. The reversal of 65644708248 is 84280744656.

It is a happy number.

65644708248 is a `hidden beast` number, since 6 + 56 + 4 + 470 + 82 + 48 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 65644708194 and 65644708203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1741453 + ... + 1778748.

It is an arithmetic number, because the mean of its divisors is an integer number (2173724735).

Almost surely, 2^65644708248 is an apocalyptic number.

It is an amenable number.

65644708248 is an abundant number, since it is smaller than the sum of its proper divisors (143032866312).

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

65644708248 is a wasteful number, since it uses less digits than its factorization.

65644708248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3520257 (or 3520250 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 54.

The spelling of 65644708248 in words is "sixty-five billion, six hundred forty-four million, seven hundred eight thousand, two hundred forty-eight".