1163645696 has 72 divisors (see below), whose sum is σ = 2390449824. Its totient is φ = 565125120.

The previous prime is 1163645683. The next prime is 1163645759. The reversal of 1163645696 is 6965463611.

It is a self number, because there is not a number n which added to its sum of digits gives 1163645696.

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 7 ways as a sum of consecutive naturals, for example, 1326410 + ... + 1327286.

It is an arithmetic number, because the mean of its divisors is an integer number (33200692).

Almost surely, 2^1163645696 is an apocalyptic number.

1163645696 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 1163645696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1195224912).

1163645696 is an abundant number, since it is smaller than the sum of its proper divisors (1226804128).

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

1163645696 is an frugal number, since it uses more digits than its factorization.

1163645696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037 (or 1023 counting only the distinct ones).

The product of its digits is 699840, while the sum is 47.

The square root of 1163645696 is about 34112.2514062030. The cubic root of 1163645696 is about 1051.8171695746.

The spelling of 1163645696 in words is "one billion, one hundred sixty-three million, six hundred forty-five thousand, six hundred ninety-six".