1816055000 has 40 divisors (see below), whose sum is σ = 4255028580. Its totient is φ = 726420000.

The previous prime is 1816054963. The next prime is 1816055011. The reversal of 1816055000 is 5506181.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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 in 9 ways as a sum of consecutive naturals, for example, 176606 + ... + 186605.

Almost surely, 2^1816055000 is an apocalyptic number.

1816055000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1816055000 is an abundant number, since it is smaller than the sum of its proper divisors (2438973580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1816055000 is an equidigital number, since it uses as much as digits as its factorization.

1816055000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363237 (or 363218 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1816055000 is about 42615.1968199139. The cubic root of 1816055000 is about 1220.0463567443.

The spelling of 1816055000 in words is "one billion, eight hundred sixteen million, fifty-five thousand".