1115565696 has 320 divisors, whose sum is σ = 3998808000. Its totient is φ = 301584384.

The previous prime is 1115565673. The next prime is 1115565793. The reversal of 1115565696 is 6965655111.

1115565696 is a `hidden beast` number, since 1 + 1 + 1 + 556 + 5 + 6 + 96 = 666.

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 39 ways as a sum of consecutive naturals, for example, 1378540 + ... + 1379348.

It is an arithmetic number, because the mean of its divisors is an integer number (12496275).

Almost surely, 2^1115565696 is an apocalyptic number.

1115565696 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 1115565696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1999404000).

1115565696 is an abundant number, since it is smaller than the sum of its proper divisors (2883242304).

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

1115565696 is an equidigital number, since it uses as much as digits as its factorization.

1115565696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861 (or 840 counting only the distinct ones).

The product of its digits is 243000, while the sum is 45.

The square root of 1115565696 is about 33400.0852693522. The cubic root of 1115565696 is about 1037.1264661221.

The spelling of 1115565696 in words is "one billion, one hundred fifteen million, five hundred sixty-five thousand, six hundred ninety-six".