3916408165 has 4 divisors (see below), whose sum is σ = 4699689804. Its totient is φ = 3133126528.

The previous prime is 3916408163. The next prime is 3916408169. The reversal of 3916408165 is 5618046193.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 702992196 + 3213415969 = 26514^2 + 56687^2 .

It is a cyclic number.

It is not a de Polignac number, because 3916408165 - 2¹ = 3916408163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3916408163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391640812 + ... + 391640821.

It is an arithmetic number, because the mean of its divisors is an integer number (1174922451).

Almost surely, 2^3916408165 is an apocalyptic number.

It is an amenable number.

3916408165 is a deficient number, since it is larger than the sum of its proper divisors (783281639).

3916408165 is an equidigital number, since it uses as much as digits as its factorization.

3916408165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783281638.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 3916408165 is about 62581.2125561658. The cubic root of 3916408165 is about 1576.2653025339.

The spelling of 3916408165 in words is "three billion, nine hundred sixteen million, four hundred eight thousand, one hundred sixty-five".