43042300666 has 12 divisors (see below), whose sum is σ = 65541480858. Its totient is φ = 21199934712.

The previous prime is 43042300601. The next prime is 43042300687. The reversal of 43042300666 is 66600324034.

It can be written as a sum of positive squares in only one way, i.e., 38669256025 + 4373044641 = 196645^2 + 66129^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2388121 + ... + 2406076.

Almost surely, 2^43042300666 is an apocalyptic number.

43042300666 is a deficient number, since it is larger than the sum of its proper divisors (22499180192).

43042300666 is an equidigital number, since it uses as much as digits as its factorization.

43042300666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4794333 (or 4794266 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 34.

The spelling of 43042300666 in words is "forty-three billion, forty-two million, three hundred thousand, six hundred sixty-six".