666016041 has 4 divisors (see below), whose sum is σ = 888021392. Its totient is φ = 444010692.

The previous prime is 666016033. The next prime is 666016061. The reversal of 666016041 is 140610666.

666016041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 666016041 - 2³ = 666016033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (666016031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111002671 + ... + 111002676.

It is an arithmetic number, because the mean of its divisors is an integer number (222005348).

Almost surely, 2^666016041 is an apocalyptic number.

It is an amenable number.

666016041 is a deficient number, since it is larger than the sum of its proper divisors (222005351).

666016041 is a wasteful number, since it uses less digits than its factorization.

666016041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222005350.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 666016041 is about 25807.2865873187. The cubic root of 666016041 is about 873.2961853004.

The spelling of 666016041 in words is "six hundred sixty-six million, sixteen thousand, forty-one".