18083832816 has 80 divisors (see below), whose sum is σ = 53551993088. Its totient is φ = 5151168000.

The previous prime is 18083832803. The next prime is 18083832827. The reversal of 18083832816 is 61823838081.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 15 ways as a sum of consecutive naturals, for example, 29916 + ... + 192516.

Almost surely, 2^18083832816 is an apocalyptic number.

18083832816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18083832816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26775996544).

18083832816 is an abundant number, since it is smaller than the sum of its proper divisors (35468160272).

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

18083832816 is a wasteful number, since it uses less digits than its factorization.

18083832816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162950 (or 162944 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 18083832816 in words is "eighteen billion, eighty-three million, eight hundred thirty-two thousand, eight hundred sixteen".