1168865992 has 48 divisors (see below), whose sum is σ = 2592702000. Its totient is φ = 492442272.

The previous prime is 1168865981. The next prime is 1168865993. The reversal of 1168865992 is 2995688611.

It is not an unprimeable number, because it can be changed into a prime (1168865993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2142 + ... + 48397.

It is an arithmetic number, because the mean of its divisors is an integer number (54014625).

Almost surely, 2^1168865992 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 1168865992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1296351000).

1168865992 is an abundant number, since it is smaller than the sum of its proper divisors (1423836008).

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

1168865992 is a wasteful number, since it uses less digits than its factorization.

1168865992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50618 (or 50607 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 55.

The square root of 1168865992 is about 34188.6822208754. The cubic root of 1168865992 is about 1053.3876953019.

The spelling of 1168865992 in words is "one billion, one hundred sixty-eight million, eight hundred sixty-five thousand, nine hundred ninety-two".