18200318976 has 484 divisors, whose sum is σ = 63820743712. Its totient is φ = 5079158784.

The previous prime is 18200318971. The next prime is 18200318993. The reversal of 18200318976 is 67981300281.

It is a super-2 number, since 2×18200318976² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18200318971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 43 ways as a sum of consecutive naturals, for example, 423263211 + ... + 423263253.

Almost surely, 2^18200318976 is an apocalyptic number.

18200318976 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 18200318976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31910371856).

18200318976 is an abundant number, since it is smaller than the sum of its proper divisors (45620424736).

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

18200318976 is an frugal number, since it uses more digits than its factorization.

18200318976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 18200318976 in words is "eighteen billion, two hundred million, three hundred eighteen thousand, nine hundred seventy-six".