43243366066 has 16 divisors (see below), whose sum is σ = 67108722840. Its totient is φ = 20873946240.

The previous prime is 43243365983. The next prime is 43243366069. The reversal of 43243366066 is 66066334234.

It can be written as a sum of positive squares in 4 ways, for example, as 43166295225 + 77070841 = 207765^2 + 8779^2 .

It is not an unprimeable number, because it can be changed into a prime (43243366069) 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, 623446 + ... + 689326.

Almost surely, 2^43243366066 is an apocalyptic number.

43243366066 is a deficient number, since it is larger than the sum of its proper divisors (23865356774).

43243366066 is a wasteful number, since it uses less digits than its factorization.

43243366066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77229.

The product of its (nonzero) digits is 1119744, while the sum is 43.

The spelling of 43243366066 in words is "forty-three billion, two hundred forty-three million, three hundred sixty-six thousand, sixty-six".