65859495856 has 80 divisors (see below), whose sum is σ = 162336038400. Its totient is φ = 25659520320.

The previous prime is 65859495851. The next prime is 65859495857.

It is a happy number.

65859495856 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (65859495851) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 485116 + ... + 605851.

It is an arithmetic number, because the mean of its divisors is an integer number (2029200480).

Almost surely, 2^65859495856 is an apocalyptic number.

It is an amenable number.

65859495856 is an abundant number, since it is smaller than the sum of its proper divisors (96476542544).

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

65859495856 is a wasteful number, since it uses less digits than its factorization.

65859495856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091007 (or 1090987 counting only the distinct ones).

The product of its digits is 466560000, while the sum is 70.

The spelling of 65859495856 in words is "sixty-five billion, eight hundred fifty-nine million, four hundred ninety-five thousand, eight hundred fifty-six".