65659895656 has 32 divisors (see below), whose sum is σ = 128478853440. Its totient is φ = 31399175808.

The previous prime is 65659895621. The next prime is 65659895659.

65659895656 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×65659895656² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65659895659) 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, 2871340 + ... + 2894116.

It is an arithmetic number, because the mean of its divisors is an integer number (4014964170).

Almost surely, 2^65659895656 is an apocalyptic number.

It is an amenable number.

65659895656 is a deficient number, since it is larger than the sum of its proper divisors (62818957784).

65659895656 is a wasteful number, since it uses less digits than its factorization.

65659895656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38473 (or 38469 counting only the distinct ones).

The product of its digits is 524880000, while the sum is 70.

The spelling of 65659895656 in words is "sixty-five billion, six hundred fifty-nine million, eight hundred ninety-five thousand, six hundred fifty-six".