65863140739968 has 768 divisors, whose sum is σ = 215734042137600. Its totient is φ = 17631041126400.

The previous prime is 65863140739951. The next prime is 65863140740011. The reversal of 65863140739968 is 86993704136856.

It is a self number, because there is not a number n which added to its sum of digits gives 65863140739968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1611152553 + ... + 1611193431.

It is an arithmetic number, because the mean of its divisors is an integer number (280903700700).

Almost surely, 2^{65863140739968} 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 65863140739968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107867021068800).

65863140739968 is an abundant number, since it is smaller than the sum of its proper divisors (149870901397632).

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

65863140739968 is a wasteful number, since it uses less digits than its factorization.

65863140739968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41031 (or 41006 counting only the distinct ones).

The product of its (nonzero) digits is 1410877440, while the sum is 75.

The spelling of 65863140739968 in words is "sixty-five trillion, eight hundred sixty-three billion, one hundred forty million, seven hundred thirty-nine thousand, nine hundred sixty-eight".