18012119040000 has 1700 divisors, whose sum is σ = 69115780386180. Its totient is φ = 4671406080000.

The previous prime is 18012119039927. The next prime is 18012119040011. The reversal of 18012119040000 is 4091121081.

It can be written as a sum of positive squares in 10 ways, for example, as 17991713488896 + 20405551104 = 4241664^2 + 142848^2 .

It is a super-2 number, since 2×18012119040000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 202383359956 + ... + 202383360044.

Almost surely, 2^{18012119040000} is an apocalyptic number.

18012119040000 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 18012119040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34557890193090).

18012119040000 is an abundant number, since it is smaller than the sum of its proper divisors (51103661346180).

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

18012119040000 is an frugal number, since it uses more digits than its factorization.

18012119040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The spelling of 18012119040000 in words is "eighteen trillion, twelve billion, one hundred nineteen million, forty thousand".