1166328528 has 80 divisors (see below), whose sum is σ = 3309550080. Its totient is φ = 352294272.

The previous prime is 1166328523. The next prime is 1166328557. The reversal of 1166328528 is 8258236611.

It is a self number, because there is not a number n which added to its sum of digits gives 1166328528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166328521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6826 + ... + 48777.

It is an arithmetic number, because the mean of its divisors is an integer number (41369376).

Almost surely, 2^1166328528 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 1166328528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1654775040).

1166328528 is an abundant number, since it is smaller than the sum of its proper divisors (2143221552).

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

1166328528 is a wasteful number, since it uses less digits than its factorization.

1166328528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55656 (or 55650 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 1166328528 is about 34151.5523512475. The cubic root of 1166328528 is about 1052.6248847623.

The spelling of 1166328528 in words is "one billion, one hundred sixty-six million, three hundred twenty-eight thousand, five hundred twenty-eight".