43066161 has 24 divisors (see below), whose sum is σ = 66603264. Its totient is φ = 27779760.

The previous prime is 43066129. The next prime is 43066169. The reversal of 43066161 is 16166034.

43066161 is a `hidden beast` number, since 43 + 0 + 6 + 616 + 1 = 666.

It is not a de Polignac number, because 43066161 - 2⁵ = 43066129 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (43066169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4675 + ... + 10391.

It is an arithmetic number, because the mean of its divisors is an integer number (2775136).

Almost surely, 2^43066161 is an apocalyptic number.

It is an amenable number.

43066161 is a deficient number, since it is larger than the sum of its proper divisors (23537103).

43066161 is an equidigital number, since it uses as much as digits as its factorization.

43066161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5763 (or 5751 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 43066161 is about 6562.4813142591. The cubic root of 43066161 is about 350.5193948309.

The spelling of 43066161 in words is "forty-three million, sixty-six thousand, one hundred sixty-one".