65243123446 has 4 divisors (see below), whose sum is σ = 97864685172. Its totient is φ = 32621561722.

The previous prime is 65243123431. The next prime is 65243123453. The reversal of 65243123446 is 64432134256.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 65243123399 and 65243123408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16310780860 + ... + 16310780863.

It is an arithmetic number, because the mean of its divisors is an integer number (24466171293).

Almost surely, 2^65243123446 is an apocalyptic number.

65243123446 is a deficient number, since it is larger than the sum of its proper divisors (32621561726).

65243123446 is a wasteful number, since it uses less digits than its factorization.

65243123446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32621561725.

The product of its digits is 414720, while the sum is 40.

The spelling of 65243123446 in words is "sixty-five billion, two hundred forty-three million, one hundred twenty-three thousand, four hundred forty-six".