1159688660 has 96 divisors (see below), whose sum is σ = 2824657920. Its totient is φ = 396085248.

The previous prime is 1159688659. The next prime is 1159688671. The reversal of 1159688660 is 668869511.

It is a junction number, because it is equal to n+sod(n) for n = 1159688599 and 1159688608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 258557 + ... + 263003.

It is an arithmetic number, because the mean of its divisors is an integer number (29423520).

Almost surely, 2^1159688660 is an apocalyptic number.

1159688660 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 1159688660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1412328960).

1159688660 is an abundant number, since it is smaller than the sum of its proper divisors (1664969260).

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

1159688660 is a wasteful number, since it uses less digits than its factorization.

1159688660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4545 (or 4543 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 1159688660 is about 34054.2017965478. The cubic root of 1159688660 is about 1050.6235630960.

The spelling of 1159688660 in words is "one billion, one hundred fifty-nine million, six hundred eighty-eight thousand, six hundred sixty".