1161844992000 has 3072 divisors, whose sum is σ = 5592996864000. Its totient is φ = 230916096000.

The previous prime is 1161844991981. The next prime is 1161844992013. The reversal of 1161844992000 is 2994481611.

It is a happy number.

1161844992000 is a `hidden beast` number, since 1 + 1 + 61 + 84 + 499 + 20 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3072).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 19692287971 + ... + 19692288029.

It is an arithmetic number, because the mean of its divisors is an integer number (1820637000).

Almost surely, 2^{1161844992000} is an apocalyptic number.

1161844992000 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 1161844992000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2796498432000).

1161844992000 is an abundant number, since it is smaller than the sum of its proper divisors (4431151872000).

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

1161844992000 is a wasteful number, since it uses less digits than its factorization.

1161844992000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 1161844992000 in words is "one trillion, one hundred sixty-one billion, eight hundred forty-four million, nine hundred ninety-two thousand".