65897479856 has 20 divisors (see below), whose sum is σ = 137497626672. Its totient is φ = 30414221376.

The previous prime is 65897479811. The next prime is 65897479859.

65897479856 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (65897479859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158407196 + ... + 158407611.

Almost surely, 2^65897479856 is an apocalyptic number.

It is an amenable number.

65897479856 is an abundant number, since it is smaller than the sum of its proper divisors (71600146816).

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

65897479856 is a wasteful number, since it uses less digits than its factorization.

65897479856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316814828 (or 316814822 counting only the distinct ones).

The product of its digits is 914457600, while the sum is 74.

The spelling of 65897479856 in words is "sixty-five billion, eight hundred ninety-seven million, four hundred seventy-nine thousand, eight hundred fifty-six".