1168840660 has 24 divisors (see below), whose sum is σ = 2643378696. Its totient is φ = 431571840.

The previous prime is 1168840583. The next prime is 1168840667. The reversal of 1168840660 is 660488611.

It can be written as a sum of positive squares in 4 ways, for example, as 176464656 + 992376004 = 13284^2 + 31502^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1168840667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2247511 + ... + 2248030.

It is an arithmetic number, because the mean of its divisors is an integer number (110140779).

Almost surely, 2^1168840660 is an apocalyptic number.

1168840660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1168840660 is an abundant number, since it is smaller than the sum of its proper divisors (1474538036).

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

1168840660 is a wasteful number, since it uses less digits than its factorization.

1168840660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4495563 (or 4495561 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 1168840660 is about 34188.3117453904. The cubic root of 1168840660 is about 1053.3800854732.

The spelling of 1168840660 in words is "one billion, one hundred sixty-eight million, eight hundred forty thousand, six hundred sixty".