1816480166 has 4 divisors (see below), whose sum is σ = 2724720252. Its totient is φ = 908240082.

The previous prime is 1816480153. The next prime is 1816480181. The reversal of 1816480166 is 6610846181.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454120040 + ... + 454120043.

It is an arithmetic number, because the mean of its divisors is an integer number (681180063).

Almost surely, 2^1816480166 is an apocalyptic number.

1816480166 is a deficient number, since it is larger than the sum of its proper divisors (908240086).

1816480166 is an equidigital number, since it uses as much as digits as its factorization.

1816480166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908240085.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 1816480166 is about 42620.1849597113. The cubic root of 1816480166 is about 1220.1415597630.

The spelling of 1816480166 in words is "one billion, eight hundred sixteen million, four hundred eighty thousand, one hundred sixty-six".