43023003661 has 8 divisors (see below), whose sum is σ = 47634696864. Its totient is φ = 38528062320.

The previous prime is 43023003649. The next prime is 43023003677. The reversal of 43023003661 is 16630032034.

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

It is not a de Polignac number, because 43023003661 - 2¹⁹ = 43022479373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43023003461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29187190 + ... + 29188663.

It is an arithmetic number, because the mean of its divisors is an integer number (5954337108).

Almost surely, 2^43023003661 is an apocalyptic number.

It is an amenable number.

43023003661 is a deficient number, since it is larger than the sum of its proper divisors (4611693203).

43023003661 is a wasteful number, since it uses less digits than its factorization.

43023003661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58375931.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 43023003661 its reverse (16630032034), we get a palindrome (59653035695).

The spelling of 43023003661 in words is "forty-three billion, twenty-three million, three thousand, six hundred sixty-one".