1161443844000 has 1152 divisors, whose sum is σ = 4616430174720. Its totient is φ = 274176000000.

The previous prime is 1161443843993. The next prime is 1161443844047. The reversal of 1161443844000 is 4483441611.

It is a happy number.

1161443844000 is a `hidden beast` number, since 1 + 1 + 614 + 4 + 38 + 4 + 4 + 0 + 0 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2839715796 + ... + 2839716204.

It is an arithmetic number, because the mean of its divisors is an integer number (4007317860).

Almost surely, 2^{1161443844000} is an apocalyptic number.

1161443844000 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 1161443844000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2308215087360).

1161443844000 is an abundant number, since it is smaller than the sum of its proper divisors (3454986330720).

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

1161443844000 is a wasteful number, since it uses less digits than its factorization.

1161443844000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 1161443844000 in words is "one trillion, one hundred sixty-one billion, four hundred forty-three million, eight hundred forty-four thousand".