8166446618 has 16 divisors (see below), whose sum is σ = 13532434560. Its totient is φ = 3665032800.

The previous prime is 8166446611. The next prime is 8166446623.

8166446618 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (8166446611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2347643 + ... + 2351118.

It is an arithmetic number, because the mean of its divisors is an integer number (845777160).

Almost surely, 2^8166446618 is an apocalyptic number.

8166446618 is a deficient number, since it is larger than the sum of its proper divisors (5365987942).

8166446618 is a wasteful number, since it uses less digits than its factorization.

8166446618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4698853.

The product of its digits is 1327104, while the sum is 50.

The square root of 8166446618 is about 90368.3939107031. The cubic root of 8166446618 is about 2013.7754521201.

The spelling of 8166446618 in words is "eight billion, one hundred sixty-six million, four hundred forty-six thousand, six hundred eighteen".