7404100666 has 8 divisors (see below), whose sum is σ = 11106799380. Its totient is φ = 3701834208.

The previous prime is 7404100663. The next prime is 7404100723. The reversal of 7404100666 is 6660014047.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6908103225 + 495997441 = 83115^2 + 22271^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (7404100663) 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, 61171 + ... + 136198.

Almost surely, 2^7404100666 is an apocalyptic number.

7404100666 is a deficient number, since it is larger than the sum of its proper divisors (3702698714).

7404100666 is a wasteful number, since it uses less digits than its factorization.

7404100666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216128.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 7404100666 is about 86047.0840063741. The cubic root of 7404100666 is about 1949.0550465187.

The spelling of 7404100666 in words is "seven billion, four hundred four million, one hundred thousand, six hundred sixty-six".