1161170000 has 100 divisors (see below), whose sum is σ = 2847213600. Its totient is φ = 458544000.

The previous prime is 1161169991. The next prime is 1161170011. The reversal of 1161170000 is 711611.

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 829301 + ... + 830699.

It is an arithmetic number, because the mean of its divisors is an integer number (28472136).

Almost surely, 2^1161170000 is an apocalyptic number.

1161170000 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 1161170000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1423606800).

1161170000 is an abundant number, since it is smaller than the sum of its proper divisors (1686043600).

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

1161170000 is an equidigital number, since it uses as much as digits as its factorization.

1161170000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510 (or 1489 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 17.

The square root of 1161170000 is about 34075.9445943909. The cubic root of 1161170000 is about 1051.0707142920.

Adding to 1161170000 its reverse (711611), we get a palindrome (1161881611).

The spelling of 1161170000 in words is "one billion, one hundred sixty-one million, one hundred seventy thousand".