1163640336 has 40 divisors (see below), whose sum is σ = 3022886880. Its totient is φ = 385710336.

The previous prime is 1163640323. The next prime is 1163640353. The reversal of 1163640336 is 6330463611.

It is a junction number, because it is equal to n+sod(n) for n = 1163640297 and 1163640306.

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, 59125 + ... + 76308.

It is an arithmetic number, because the mean of its divisors is an integer number (75572172).

Almost surely, 2^1163640336 is an apocalyptic number.

1163640336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1163640336 is an abundant number, since it is smaller than the sum of its proper divisors (1859246544).

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

1163640336 is a wasteful number, since it uses less digits than its factorization.

1163640336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135623 (or 135617 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 1163640336 is about 34112.1728419636. The cubic root of 1163640336 is about 1051.8155546074.

The spelling of 1163640336 in words is "one billion, one hundred sixty-three million, six hundred forty thousand, three hundred thirty-six".