43066202461 has 4 divisors (see below), whose sum is σ = 43091228124. Its totient is φ = 43041176800.

The previous prime is 43066202449. The next prime is 43066202477. The reversal of 43066202461 is 16420266034.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11699667225 + 31366535236 = 108165^2 + 177106^2 .

It is a cyclic number.

It is not a de Polignac number, because 43066202461 - 2¹⁵ = 43066169693 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 (43066202441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12510250 + ... + 12513691.

It is an arithmetic number, because the mean of its divisors is an integer number (10772807031).

Almost surely, 2^43066202461 is an apocalyptic number.

It is an amenable number.

43066202461 is a deficient number, since it is larger than the sum of its proper divisors (25025663).

43066202461 is a wasteful number, since it uses less digits than its factorization.

43066202461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25025662.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 43066202461 its reverse (16420266034), we get a palindrome (59486468495).

The spelling of 43066202461 in words is "forty-three billion, sixty-six million, two hundred two thousand, four hundred sixty-one".