4163131666 has 8 divisors (see below), whose sum is σ = 6612032700. Its totient is φ = 1959120768.

The previous prime is 4163131619. The next prime is 4163131681. The reversal of 4163131666 is 6661313614.

It can be written as a sum of positive squares in 2 ways, for example, as 4162959441 + 172225 = 64521^2 + 415^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61222491 + ... + 61222558.

Almost surely, 2^4163131666 is an apocalyptic number.

4163131666 is a deficient number, since it is larger than the sum of its proper divisors (2448901034).

4163131666 is a wasteful number, since it uses less digits than its factorization.

4163131666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122445068.

The product of its digits is 46656, while the sum is 37.

The square root of 4163131666 is about 64522.3346291809. The cubic root of 4163131666 is about 1608.6937781732.

The spelling of 4163131666 in words is "four billion, one hundred sixty-three million, one hundred thirty-one thousand, six hundred sixty-six".