13242061065643 has 16 divisors (see below), whose sum is σ = 14127074438400. Its totient is φ = 12391711363360.

The previous prime is 13242061065631. The next prime is 13242061065661. The reversal of 13242061065643 is 34656016024231.

It is a happy number.

It is not a de Polignac number, because 13242061065643 - 2¹³ = 13242061057451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13242061065643.

It is not an unprimeable number, because it can be changed into a prime (13242761065643) 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, 54381121 + ... + 54624082.

It is an arithmetic number, because the mean of its divisors is an integer number (882942152400).

Almost surely, 2^{13242061065643} is an apocalyptic number.

13242061065643 is a deficient number, since it is larger than the sum of its proper divisors (885013372757).

13242061065643 is a wasteful number, since it uses less digits than its factorization.

13242061065643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109005362.

The product of its (nonzero) digits is 622080, while the sum is 43.

Adding to 13242061065643 its reverse (34656016024231), we get a palindrome (47898077089874).

The spelling of 13242061065643 in words is "thirteen trillion, two hundred forty-two billion, sixty-one million, sixty-five thousand, six hundred forty-three".