43111041663 has 16 divisors (see below), whose sum is σ = 57878944256. Its totient is φ = 28542507840.

The previous prime is 43111041643. The next prime is 43111041679. The reversal of 43111041663 is 36614011134.

It is a de Polignac number, because none of the positive numbers 2^k-43111041663 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 43111041663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43111041643) 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, 219531 + ... + 366627.

It is an arithmetic number, because the mean of its divisors is an integer number (3617434016).

Almost surely, 2^43111041663 is an apocalyptic number.

43111041663 is a deficient number, since it is larger than the sum of its proper divisors (14767902593).

43111041663 is a wasteful number, since it uses less digits than its factorization.

43111041663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147774.

The product of its (nonzero) digits is 5184, while the sum is 30.

Adding to 43111041663 its reverse (36614011134), we get a palindrome (79725052797).

The spelling of 43111041663 in words is "forty-three billion, one hundred eleven million, forty-one thousand, six hundred sixty-three".