1188591560 has 64 divisors (see below), whose sum is σ = 2888524800. Its totient is φ = 437573376.

The previous prime is 1188591473. The next prime is 1188591571. The reversal of 1188591560 is 651958811.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183497 + ... + 189863.

It is an arithmetic number, because the mean of its divisors is an integer number (45133200).

Almost surely, 2^1188591560 is an apocalyptic number.

1188591560 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 1188591560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1444262400).

1188591560 is an abundant number, since it is smaller than the sum of its proper divisors (1699933240).

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

1188591560 is a wasteful number, since it uses less digits than its factorization.

1188591560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6750 (or 6746 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 44.

The square root of 1188591560 is about 34475.9562593991. The cubic root of 1188591560 is about 1059.2802637559.

The spelling of 1188591560 in words is "one billion, one hundred eighty-eight million, five hundred ninety-one thousand, five hundred sixty".