1166035728 has 160 divisors (see below), whose sum is σ = 3558022272. Its totient is φ = 324403200.

The previous prime is 1166035699. The next prime is 1166035747. The reversal of 1166035728 is 8275306611.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1763718 + ... + 1764378.

Almost surely, 2^1166035728 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 1166035728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1779011136).

1166035728 is an abundant number, since it is smaller than the sum of its proper divisors (2391986544).

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

1166035728 is a wasteful number, since it uses less digits than its factorization.

1166035728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953 (or 947 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1166035728 is about 34147.2653077812. The cubic root of 1166035728 is about 1052.5367922699.

The spelling of 1166035728 in words is "one billion, one hundred sixty-six million, thirty-five thousand, seven hundred twenty-eight".