1089180161784 has 448 divisors, whose sum is σ = 3753685877760. Its totient is φ = 291414309120.

The previous prime is 1089180161747. The next prime is 1089180161813. The reversal of 1089180161784 is 4871610819801.

1089180161784 is a `hidden beast` number, since 1 + 0 + 8 + 9 + 18 + 0 + 1 + 617 + 8 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 1089180161784.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 19153057 + ... + 19209839.

It is an arithmetic number, because the mean of its divisors is an integer number (8378763120).

Almost surely, 2^{1089180161784} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1089180161784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1876842938880).

1089180161784 is an abundant number, since it is smaller than the sum of its proper divisors (2664505715976).

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

1089180161784 is a wasteful number, since it uses less digits than its factorization.

1089180161784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56854 (or 56835 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 54.

The spelling of 1089180161784 in words is "one trillion, eighty-nine billion, one hundred eighty million, one hundred sixty-one thousand, seven hundred eighty-four".