243314165553 has 16 divisors (see below), whose sum is σ = 328910831040. Its totient is φ = 159964118784.

The previous prime is 243314165543. The next prime is 243314165557. The reversal of 243314165553 is 355561413342.

It is a happy number.

243314165553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243314165553 - 2¹² = 243314161457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243314165557) 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 15 ways as a sum of consecutive naturals, for example, 1498038 + ... + 1652496.

It is an arithmetic number, because the mean of its divisors is an integer number (20556926940).

Almost surely, 2^243314165553 is an apocalyptic number.

It is an amenable number.

243314165553 is a deficient number, since it is larger than the sum of its proper divisors (85596665487).

243314165553 is a wasteful number, since it uses less digits than its factorization.

243314165553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161728.

The product of its digits is 648000, while the sum is 42.

Adding to 243314165553 its reverse (355561413342), we get a palindrome (598875578895).

The spelling of 243314165553 in words is "two hundred forty-three billion, three hundred fourteen million, one hundred sixty-five thousand, five hundred fifty-three".