43031006605 has 16 divisors (see below), whose sum is σ = 53503234560. Its totient is φ = 33202806208.

The previous prime is 43031006591. The next prime is 43031006621. The reversal of 43031006605 is 50660013034.

It is a cyclic number.

It is not a de Polignac number, because 43031006605 - 2¹¹ = 43031004557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1360477 + ... + 1391746.

It is an arithmetic number, because the mean of its divisors is an integer number (3343952160).

Almost surely, 2^43031006605 is an apocalyptic number.

It is an amenable number.

43031006605 is a deficient number, since it is larger than the sum of its proper divisors (10472227955).

43031006605 is a wasteful number, since it uses less digits than its factorization.

43031006605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752340.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 43031006605 its reverse (50660013034), we get a palindrome (93691019639).

The spelling of 43031006605 in words is "forty-three billion, thirty-one million, six thousand, six hundred five".