1163115444 has 48 divisors (see below), whose sum is σ = 2759512896. Its totient is φ = 381216000.

The previous prime is 1163115413. The next prime is 1163115463. The reversal of 1163115444 is 4445113611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610894 + ... + 612794.

It is an arithmetic number, because the mean of its divisors is an integer number (57489852).

Almost surely, 2^1163115444 is an apocalyptic number.

It is an amenable number.

1163115444 is an abundant number, since it is smaller than the sum of its proper divisors (1596397452).

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

1163115444 is a wasteful number, since it uses less digits than its factorization.

1163115444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736 (or 2734 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 1163115444 is about 34104.4783569548. The cubic root of 1163115444 is about 1051.6573807039.

The spelling of 1163115444 in words is "one billion, one hundred sixty-three million, one hundred fifteen thousand, four hundred forty-four".