1155643360 has 24 divisors (see below), whose sum is σ = 2730207816. Its totient is φ = 462257280.

The previous prime is 1155643339. The next prime is 1155643369. The reversal of 1155643360 is 633465511.

It is a super-3 number, since 3×1155643360³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155643369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3611226 + ... + 3611545.

It is an arithmetic number, because the mean of its divisors is an integer number (113758659).

Almost surely, 2^1155643360 is an apocalyptic number.

1155643360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1155643360 is an abundant number, since it is smaller than the sum of its proper divisors (1574564456).

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

1155643360 is an equidigital number, since it uses as much as digits as its factorization.

1155643360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7222786 (or 7222778 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 1155643360 is about 33994.7548895414. The cubic root of 1155643360 is about 1049.4005225063.

The spelling of 1155643360 in words is "one billion, one hundred fifty-five million, six hundred forty-three thousand, three hundred sixty".