65868955986856 has 32 divisors (see below), whose sum is σ = 134835357009600. Its totient is φ = 29917456410240.

The previous prime is 65868955986851. The next prime is 65868955986859.

65868955986856 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (65868955986851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287111301 + ... + 287340628.

It is an arithmetic number, because the mean of its divisors is an integer number (4213604906550).

Almost surely, 2^{65868955986856} is an apocalyptic number.

It is an amenable number.

65868955986856 is an abundant number, since it is smaller than the sum of its proper divisors (68966401022744).

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

65868955986856 is a wasteful number, since it uses less digits than its factorization.

65868955986856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574453249 (or 574453245 counting only the distinct ones).

The product of its digits is 268738560000, while the sum is 94.

The spelling of 65868955986856 in words is "sixty-five trillion, eight hundred sixty-eight billion, nine hundred fifty-five million, nine hundred eighty-six thousand, eight hundred fifty-six".