1165604013882 has 1152 divisors, whose sum is σ = 3678471014400. Its totient is φ = 262449331200.

The previous prime is 1165604013869. The next prime is 1165604013883. The reversal of 1165604013882 is 2883104065611.

1165604013882 is a `hidden beast` number, since 1 + 1 + 6 + 5 + 604 + 0 + 1 + 38 + 8 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (1165604013883) by changing a digit.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 14043421813 + ... + 14043421895.

It is an arithmetic number, because the mean of its divisors is an integer number (3193117200).

Almost surely, 2^{1165604013882} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1165604013882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1839235507200).

1165604013882 is an abundant number, since it is smaller than the sum of its proper divisors (2512867000518).

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

1165604013882 is a wasteful number, since it uses less digits than its factorization.

1165604013882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 1165604013882 in words is "one trillion, one hundred sixty-five billion, six hundred four million, thirteen thousand, eight hundred eighty-two".