1115853616 has 40 divisors (see below), whose sum is σ = 2293674624. Its totient is φ = 524067840.

The previous prime is 1115853593. The next prime is 1115853637. The reversal of 1115853616 is 6163585111.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143361 + ... + 150943.

Almost surely, 2^1115853616 is an apocalyptic number.

1115853616 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 1115853616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1146837312).

1115853616 is an abundant number, since it is smaller than the sum of its proper divisors (1177821008).

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

1115853616 is a wasteful number, since it uses less digits than its factorization.

1115853616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8149 (or 8143 counting only the distinct ones).

The product of its digits is 21600, while the sum is 37.

The square root of 1115853616 is about 33404.3951599187. The cubic root of 1115853616 is about 1037.2156835679.

The spelling of 1115853616 in words is "one billion, one hundred fifteen million, eight hundred fifty-three thousand, six hundred sixteen".