8386141661 has 4 divisors (see below), whose sum is σ = 8386326300. Its totient is φ = 8385957024.

The previous prime is 8386141651. The next prime is 8386141697. The reversal of 8386141661 is 1661416838.

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 2175756025 + 6210385636 = 46645^2 + 78806^2 .

It is a cyclic number.

It is not a de Polignac number, because 8386141661 - 2¹⁸ = 8385879517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8386141601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28625 + ... + 132633.

It is an arithmetic number, because the mean of its divisors is an integer number (2096581575).

Almost surely, 2^8386141661 is an apocalyptic number.

It is an amenable number.

8386141661 is a deficient number, since it is larger than the sum of its proper divisors (184639).

8386141661 is a wasteful number, since it uses less digits than its factorization.

8386141661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184638.

The product of its digits is 165888, while the sum is 44.

The square root of 8386141661 is about 91575.8792532182. The cubic root of 8386141661 is about 2031.6741962876.

The spelling of 8386141661 in words is "eight billion, three hundred eighty-six million, one hundred forty-one thousand, six hundred sixty-one".