4166421305 has 8 divisors (see below), whose sum is σ = 5043951432. Its totient is φ = 3303639808.

The previous prime is 4166421299. The next prime is 4166421307. The reversal of 4166421305 is 5031246614.

It can be written as a sum of positive squares in 4 ways, for example, as 111788329 + 4054632976 = 10573^2 + 63676^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4166421305 - 2¹⁰ = 4166420281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4166421307) 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, 3686534 + ... + 3687663.

It is an arithmetic number, because the mean of its divisors is an integer number (630493929).

Almost surely, 2^4166421305 is an apocalyptic number.

It is an amenable number.

4166421305 is a deficient number, since it is larger than the sum of its proper divisors (877530127).

4166421305 is a wasteful number, since it uses less digits than its factorization.

4166421305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7374315.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 4166421305 is about 64547.8218455123. The cubic root of 4166421305 is about 1609.1173878448.

Adding to 4166421305 its reverse (5031246614), we get a palindrome (9197667919).

The spelling of 4166421305 in words is "four billion, one hundred sixty-six million, four hundred twenty-one thousand, three hundred five".