1166020000 has 120 divisors (see below), whose sum is σ = 2893726836. Its totient is φ = 462336000.

The previous prime is 1166019997. The next prime is 1166020027. The reversal of 1166020000 is 206611.

It can be written as a sum of positive squares in 10 ways, for example, as 30869136 + 1135150864 = 5556^2 + 33692^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3459832 + ... + 3460168.

Almost surely, 2^1166020000 is an apocalyptic number.

1166020000 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 1166020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1446863418).

1166020000 is an abundant number, since it is smaller than the sum of its proper divisors (1727706836).

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

1166020000 is an equidigital number, since it uses as much as digits as its factorization.

1166020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1166020000 is about 34147.0350103783. The cubic root of 1166020000 is about 1052.5320598897.

Adding to 1166020000 its reverse (206611), we get a palindrome (1166226611).

The spelling of 1166020000 in words is "one billion, one hundred sixty-six million, twenty thousand".