65504456243 has 8 divisors (see below), whose sum is σ = 65856575136. Its totient is φ = 65153001600.

The previous prime is 65504456231. The next prime is 65504456267. The reversal of 65504456243 is 34265440556.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65504456243 - 2⁸ = 65504455987 is a prime.

It is a super-2 number, since 2×65504456243² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65504456194 and 65504456203.

It is not an unprimeable number, because it can be changed into a prime (65504456443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32330 + ... + 363392.

It is an arithmetic number, because the mean of its divisors is an integer number (8232071892).

Almost surely, 2^65504456243 is an apocalyptic number.

65504456243 is a deficient number, since it is larger than the sum of its proper divisors (352118893).

65504456243 is a wasteful number, since it uses less digits than its factorization.

65504456243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332125.

The product of its (nonzero) digits is 1728000, while the sum is 44.

Adding to 65504456243 its reverse (34265440556), we get a palindrome (99769896799).

The spelling of 65504456243 in words is "sixty-five billion, five hundred four million, four hundred fifty-six thousand, two hundred forty-three".