18143516160000 has 3120 divisors, whose sum is σ = 85412980097280. Its totient is φ = 3762339840000.

The previous prime is 18143516159969. The next prime is 18143516160061. The reversal of 18143516160000 is 6161534181.

It is a happy number.

18143516160000 is a `hidden beast` number, since 1 + 8 + 1 + 4 + 35 + 1 + 616 + 0 + 0 + 0 + 0 = 666.

It is a super-2 number, since 2×18143516160000² (a number of 27 digits) contains 22 as substring.

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 polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 37255679757 + ... + 37255680243.

Almost surely, 2^{18143516160000} is an apocalyptic number.

18143516160000 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 18143516160000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42706490048640).

18143516160000 is an abundant number, since it is smaller than the sum of its proper divisors (67269463937280).

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

18143516160000 is an equidigital number, since it uses as much as digits as its factorization.

18143516160000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

Adding to 18143516160000 its reverse (6161534181), we get a palindrome (18149677694181).

The spelling of 18143516160000 in words is "eighteen trillion, one hundred forty-three billion, five hundred sixteen million, one hundred sixty thousand".