6665194466 has 16 divisors (see below), whose sum is σ = 11437601280. Its totient is φ = 2853623520.

The previous prime is 6665194451. The next prime is 6665194483. The reversal of 6665194466 is 6644915666.

It is a happy number.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 226331 + ... + 254078.

It is an arithmetic number, because the mean of its divisors is an integer number (714850080).

Almost surely, 2^6665194466 is an apocalyptic number.

6665194466 is a deficient number, since it is larger than the sum of its proper divisors (4772406814).

6665194466 is a wasteful number, since it uses less digits than its factorization.

6665194466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481409.

The product of its digits is 5598720, while the sum is 53.

The square root of 6665194466 is about 81640.6422439216. The cubic root of 6665194466 is about 1881.9335081760.

The spelling of 6665194466 in words is "six billion, six hundred sixty-five million, one hundred ninety-four thousand, four hundred sixty-six".