43066066 has 16 divisors (see below), whose sum is σ = 68866200. Its totient is φ = 20128000.

The previous prime is 43066063. The next prime is 43066069. The reversal of 43066066 is 66066034.

It is an interprime number because it is at equal distance from previous prime (43066063) and next prime (43066069).

It can be written as a sum of positive squares in 4 ways, for example, as 24790441 + 18275625 = 4979^2 + 4275^2 .

It is not an unprimeable number, because it can be changed into a prime (43066063) 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, 816 + ... + 9316.

Almost surely, 2^43066066 is an apocalyptic number.

43066066 is a deficient number, since it is larger than the sum of its proper divisors (25800134).

43066066 is a wasteful number, since it uses less digits than its factorization.

43066066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8669.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 43066066 is about 6562.4740761393. The cubic root of 43066066 is about 350.5191370928.

The spelling of 43066066 in words is "forty-three million, sixty-six thousand, sixty-six".