3816861166 has 4 divisors (see below), whose sum is σ = 5725291752. Its totient is φ = 1908430582.

The previous prime is 3816861161. The next prime is 3816861203. The reversal of 3816861166 is 6611686183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6611686183 = 17681 ⋅373943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3816861161) 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 as a sum of consecutive naturals, namely, 954215290 + ... + 954215293.

It is an arithmetic number, because the mean of its divisors is an integer number (1431322938).

Almost surely, 2^3816861166 is an apocalyptic number.

3816861166 is a deficient number, since it is larger than the sum of its proper divisors (1908430586).

3816861166 is a wasteful number, since it uses less digits than its factorization.

3816861166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908430585.

The product of its digits is 248832, while the sum is 46.

The square root of 3816861166 is about 61780.7507723886. The cubic root of 3816861166 is about 1562.7953886848.

The spelling of 3816861166 in words is "three billion, eight hundred sixteen million, eight hundred sixty-one thousand, one hundred sixty-six".