1181045228160 has 384 divisors, whose sum is σ = 4386565324800. Its totient is φ = 269499654144.

The previous prime is 1181045228131. The next prime is 1181045228161. The reversal of 1181045228160 is 618225401811.

It is a tau number, because it is divible by the number of its divisors (384).

It is not an unprimeable number, because it can be changed into a prime (1181045228161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57660801 + ... + 57681279.

It is an arithmetic number, because the mean of its divisors is an integer number (11423347200).

Almost surely, 2^{1181045228160} is an apocalyptic number.

1181045228160 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 1181045228160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2193282662400).

1181045228160 is an abundant number, since it is smaller than the sum of its proper divisors (3205520096640).

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

1181045228160 is a wasteful number, since it uses less digits than its factorization.

1181045228160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21128 (or 21109 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 39.

The spelling of 1181045228160 in words is "one trillion, one hundred eighty-one billion, forty-five million, two hundred twenty-eight thousand, one hundred sixty".