666044030 has 16 divisors (see below), whose sum is σ = 1231282080. Its totient is φ = 259216992.

The previous prime is 666044009. The next prime is 666044033. The reversal of 666044030 is 30440666.

It is a super-2 number, since 2×666044030² = 887229299797281800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 666043984 and 666044002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666044033) 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 7 ways as a sum of consecutive naturals, for example, 899690 + ... + 900429.

It is an arithmetic number, because the mean of its divisors is an integer number (76955130).

Almost surely, 2^666044030 is an apocalyptic number.

666044030 is a deficient number, since it is larger than the sum of its proper divisors (565238050).

666044030 is a wasteful number, since it uses less digits than its factorization.

666044030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800163.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 666044030 is about 25807.8288509514. The cubic root of 666044030 is about 873.3084184114.

Adding to 666044030 its reverse (30440666), we get a palindrome (696484696).

The spelling of 666044030 in words is "six hundred sixty-six million, forty-four thousand, thirty".