1168649880 has 64 divisors (see below), whose sum is σ = 3509256960. Its totient is φ = 311346048.

The previous prime is 1168649861. The next prime is 1168649893. The reversal of 1168649880 is 889468611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142779 + ... + 150741.

It is an arithmetic number, because the mean of its divisors is an integer number (54832140).

Almost surely, 2^1168649880 is an apocalyptic number.

1168649880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1168649880 is an abundant number, since it is smaller than the sum of its proper divisors (2340607080).

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

1168649880 is a wasteful number, since it uses less digits than its factorization.

1168649880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9200 (or 9196 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 51.

The square root of 1168649880 is about 34185.5214966804. The cubic root of 1168649880 is about 1053.3227709066.

The spelling of 1168649880 in words is "one billion, one hundred sixty-eight million, six hundred forty-nine thousand, eight hundred eighty".