1816552166 has 16 divisors (see below), whose sum is σ = 3201197328. Its totient is φ = 762189600.

The previous prime is 1816552151. The next prime is 1816552223. The reversal of 1816552166 is 6612556181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3175505 + ... + 3176076.

It is an arithmetic number, because the mean of its divisors is an integer number (200074833).

Almost surely, 2^1816552166 is an apocalyptic number.

1816552166 is a deficient number, since it is larger than the sum of its proper divisors (1384645162).

1816552166 is a wasteful number, since it uses less digits than its factorization.

1816552166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6351607.

The product of its digits is 86400, while the sum is 41.

The square root of 1816552166 is about 42621.0296215378. The cubic root of 1816552166 is about 1220.1576805064.

The spelling of 1816552166 in words is "one billion, eight hundred sixteen million, five hundred fifty-two thousand, one hundred sixty-six".