65208813264 has 160 divisors (see below), whose sum is σ = 216621056000. Its totient is φ = 18395185536.

The previous prime is 65208813233. The next prime is 65208813281. The reversal of 65208813264 is 46231880256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102417 + ... + 375375.

It is an arithmetic number, because the mean of its divisors is an integer number (1353881600).

Almost surely, 2^65208813264 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 65208813264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108310528000).

65208813264 is an abundant number, since it is smaller than the sum of its proper divisors (151412242736).

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

65208813264 is a wasteful number, since it uses less digits than its factorization.

65208813264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273062 (or 273050 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 65208813264 in words is "sixty-five billion, two hundred eight million, eight hundred thirteen thousand, two hundred sixty-four".