1155332160 has 420 divisors, whose sum is σ = 4336628868. Its totient is φ = 291852288.

The previous prime is 1155332147. The next prime is 1155332173. The reversal of 1155332160 is 612335511.

1155332160 is a `hidden beast` number, since 115 + 533 + 2 + 16 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1155332147) and next prime (1155332173).

It can be written as a sum of positive squares in 6 ways, for example, as 5308416 + 1150023744 = 2304^2 + 33912^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 21798694 + ... + 21798746.

Almost surely, 2^1155332160 is an apocalyptic number.

1155332160 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 1155332160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2168314434).

1155332160 is an abundant number, since it is smaller than the sum of its proper divisors (3181296708).

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

1155332160 is an equidigital number, since it uses as much as digits as its factorization.

1155332160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1155332160 is about 33990.1774046562. The cubic root of 1155332160 is about 1049.3063173296.

Adding to 1155332160 its reverse (612335511), we get a palindrome (1767667671).

The spelling of 1155332160 in words is "one billion, one hundred fifty-five million, three hundred thirty-two thousand, one hundred sixty".