65857675856 has 40 divisors (see below), whose sum is σ = 146175852480. Its totient is φ = 28157336064.

The previous prime is 65857675843. The next prime is 65857675921.

65857675856 is nontrivially palindromic in base 10.

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 7 ways as a sum of consecutive naturals, for example, 654761 + ... + 748616.

It is an arithmetic number, because the mean of its divisors is an integer number (3654396312).

Almost surely, 2^65857675856 is an apocalyptic number.

It is an amenable number.

65857675856 is an abundant number, since it is smaller than the sum of its proper divisors (80318176624).

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

65857675856 is a wasteful number, since it uses less digits than its factorization.

65857675856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403811 (or 1403805 counting only the distinct ones).

The product of its digits is 423360000, while the sum is 68.

The spelling of 65857675856 in words is "sixty-five billion, eight hundred fifty-seven million, six hundred seventy-five thousand, eight hundred fifty-six".