65304640356 has 24 divisors (see below), whose sum is σ = 154089603360. Its totient is φ = 21523626432.

The previous prime is 65304640307. The next prime is 65304640399.

It is a happy number.

65304640356 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30572266 + ... + 30574401.

It is an arithmetic number, because the mean of its divisors is an integer number (6420400140).

Almost surely, 2^65304640356 is an apocalyptic number.

It is an amenable number.

65304640356 is an abundant number, since it is smaller than the sum of its proper divisors (88784963004).

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

65304640356 is a wasteful number, since it uses less digits than its factorization.

65304640356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61146763 (or 61146761 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 42.

The spelling of 65304640356 in words is "sixty-five billion, three hundred four million, six hundred forty thousand, three hundred fifty-six".