18716080320000 has 2000 divisors, whose sum is σ = 82552308680160. Its totient is φ = 4129284096000.

The previous prime is 18716080319933. The next prime is 18716080320103. The reversal of 18716080320000 is 2308061781.

18716080320000 is a `hidden beast` number, since 18 + 7 + 1 + 608 + 0 + 32 + 0 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2000).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 199 ways as a sum of consecutive naturals, for example, 5261758222 + ... + 5261761778.

Almost surely, 2^{18716080320000} is an apocalyptic number.

18716080320000 is a gapful number since it is divisible by the number (10) 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 18716080320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41276154340080).

18716080320000 is an abundant number, since it is smaller than the sum of its proper divisors (63836228360160).

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

18716080320000 is an frugal number, since it uses more digits than its factorization.

18716080320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3643 (or 3603 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

Adding to 18716080320000 its reverse (2308061781), we get a palindrome (18718388381781).

The spelling of 18716080320000 in words is "eighteen trillion, seven hundred sixteen billion, eighty million, three hundred twenty thousand".