65965633656956 has 24 divisors (see below), whose sum is σ = 126026113704624. Its totient is φ = 29962540321280.

The previous prime is 65965633656931. The next prime is 65965633657031.

It is a happy number.

65965633656956 is nontrivially palindromic in base 10.

It is a congruent number.

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, 545904245 + ... + 546025068.

It is an arithmetic number, because the mean of its divisors is an integer number (5251088071026).

Almost surely, 2^{65965633656956} is an apocalyptic number.

It is an amenable number.

65965633656956 is a deficient number, since it is larger than the sum of its proper divisors (60060480047668).

65965633656956 is a wasteful number, since it uses less digits than its factorization.

65965633656956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091930701 (or 1091930699 counting only the distinct ones).

The product of its digits is 21257640000, while the sum is 80.

The spelling of 65965633656956 in words is "sixty-five trillion, nine hundred sixty-five billion, six hundred thirty-three million, six hundred fifty-six thousand, nine hundred fifty-six".