666033041 has 4 divisors (see below), whose sum is σ = 684033972. Its totient is φ = 648032112.

The previous prime is 666033031. The next prime is 666033061. The reversal of 666033041 is 140330666.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 438023041 + 228010000 = 20929^2 + 15100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-666033041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 666032995 and 666033013.

It is not an unprimeable number, because it can be changed into a prime (666033031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9000410 + ... + 9000483.

It is an arithmetic number, because the mean of its divisors is an integer number (171008493).

Almost surely, 2^666033041 is an apocalyptic number.

It is an amenable number.

666033041 is a deficient number, since it is larger than the sum of its proper divisors (18000931).

666033041 is a wasteful number, since it uses less digits than its factorization.

666033041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18000930.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 666033041 is about 25807.6159495603. The cubic root of 666033041 is about 873.3036155062.

The spelling of 666033041 in words is "six hundred sixty-six million, thirty-three thousand, forty-one".