65043616231 has 4 divisors (see below), whose sum is σ = 70956672264. Its totient is φ = 59130560200.

The previous prime is 65043616181. The next prime is 65043616283. The reversal of 65043616231 is 13261634056.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65043616231 - 2²⁹ = 64506745319 is a prime.

It is a super-2 number, since 2×65043616231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65043616031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2956528000 + ... + 2956528021.

It is an arithmetic number, because the mean of its divisors is an integer number (17739168066).

Almost surely, 2^65043616231 is an apocalyptic number.

65043616231 is a deficient number, since it is larger than the sum of its proper divisors (5913056033).

65043616231 is a wasteful number, since it uses less digits than its factorization.

65043616231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5913056032.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 65043616231 in words is "sixty-five billion, forty-three million, six hundred sixteen thousand, two hundred thirty-one".