65835853856 has 48 divisors (see below), whose sum is σ = 132446482560. Its totient is φ = 32199440640.

The previous prime is 65835853823. The next prime is 65835853859.

65835853856 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (65835853859) 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, 2892890 + ... + 2915558.

It is an arithmetic number, because the mean of its divisors is an integer number (2759301720).

Almost surely, 2^65835853856 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 65835853856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66223241280).

65835853856 is an abundant number, since it is smaller than the sum of its proper divisors (66610628704).

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

65835853856 is a wasteful number, since it uses less digits than its factorization.

65835853856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24657 (or 24649 counting only the distinct ones).

The product of its digits is 103680000, while the sum is 62.

The spelling of 65835853856 in words is "sixty-five billion, eight hundred thirty-five million, eight hundred fifty-three thousand, eight hundred fifty-six".