65689693704320 has 256 divisors, whose sum is σ = 181097946789120. Its totient is φ = 22318916567040.

The previous prime is 65689693704293. The next prime is 65689693704331. The reversal of 65689693704320 is 2340739698656.

It is a happy 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, 354046775 + ... + 354232265.

It is an arithmetic number, because the mean of its divisors is an integer number (707413854645).

Almost surely, 2^{65689693704320} 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 65689693704320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90548973394560).

65689693704320 is an abundant number, since it is smaller than the sum of its proper divisors (115408253084800).

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

65689693704320 is a wasteful number, since it uses less digits than its factorization.

65689693704320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186231 (or 186219 counting only the distinct ones).

The product of its (nonzero) digits is 352719360, while the sum is 68.

The spelling of 65689693704320 in words is "sixty-five trillion, six hundred eighty-nine billion, six hundred ninety-three million, seven hundred four thousand, three hundred twenty".