1155303616 has 56 divisors (see below), whose sum is σ = 2443276800. Its totient is φ = 540748032.

The previous prime is 1155303613. The next prime is 1155303619. The reversal of 1155303616 is 6163035511.

It is an interprime number because it is at equal distance from previous prime (1155303613) and next prime (1155303619).

It is not an unprimeable number, because it can be changed into a prime (1155303613) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 60835 + ... + 77533.

Almost surely, 2^1155303616 is an apocalyptic number.

1155303616 is a gapful number since it is divisible by the number (16) 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 1155303616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1221638400).

1155303616 is an abundant number, since it is smaller than the sum of its proper divisors (1287973184).

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

1155303616 is a wasteful number, since it uses less digits than its factorization.

1155303616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16781 (or 16771 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 1155303616 is about 33989.7575160518. The cubic root of 1155303616 is about 1049.2976757610.

The spelling of 1155303616 in words is "one billion, one hundred fifty-five million, three hundred three thousand, six hundred sixteen".