1155946560 has 112 divisors (see below), whose sum is σ = 3682813056. Its totient is φ = 307187712.

The previous prime is 1155946559. The next prime is 1155946601. The reversal of 1155946560 is 656495511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298557 + ... + 302403.

Almost surely, 2^1155946560 is an apocalyptic number.

1155946560 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 1155946560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1841406528).

1155946560 is an abundant number, since it is smaller than the sum of its proper divisors (2526866496).

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

1155946560 is a wasteful number, since it uses less digits than its factorization.

1155946560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180 (or 4170 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 42.

The square root of 1155946560 is about 33999.2141085643. The cubic root of 1155946560 is about 1049.4922896920.

The spelling of 1155946560 in words is "one billion, one hundred fifty-five million, nine hundred forty-six thousand, five hundred sixty".