666624046 has 16 divisors (see below), whose sum is σ = 1094704128. Its totient is φ = 301937400.

The previous prime is 666624029. The next prime is 666624047. The reversal of 666624046 is 640426666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666624047) 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, 47310 + ... + 59761.

It is an arithmetic number, because the mean of its divisors is an integer number (68419008).

Almost surely, 2^666624046 is an apocalyptic number.

666624046 is a deficient number, since it is larger than the sum of its proper divisors (428080082).

666624046 is a wasteful number, since it uses less digits than its factorization.

666624046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107367.

The product of its (nonzero) digits is 248832, while the sum is 40.

The square root of 666624046 is about 25819.0636158634. The cubic root of 666624046 is about 873.5618480487.

The spelling of 666624046 in words is "six hundred sixty-six million, six hundred twenty-four thousand, forty-six".