2081663184 has 40 divisors (see below), whose sum is σ = 5382130720. Its totient is φ = 693307008.

The previous prime is 2081663173. The next prime is 2081663189. The reversal of 2081663184 is 4813661802.

It is a super-2 number, since 2×2081663184² = 8666643223242035712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081663189) 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, 41847 + ... + 76905.

It is an arithmetic number, because the mean of its divisors is an integer number (134553268).

Almost surely, 2^2081663184 is an apocalyptic number.

2081663184 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2081663184 is an abundant number, since it is smaller than the sum of its proper divisors (3300467536).

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

2081663184 is a wasteful number, since it uses less digits than its factorization.

2081663184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36307 (or 36301 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 2081663184 is about 45625.2472212480. The cubic root of 2081663184 is about 1276.8410024301.

The spelling of 2081663184 in words is "two billion, eighty-one million, six hundred sixty-three thousand, one hundred eighty-four".