1163113872 has 40 divisors (see below), whose sum is σ = 3006411744. Its totient is φ = 387485184.

The previous prime is 1163113849. The next prime is 1163113873. The reversal of 1163113872 is 2783113611.

It is not an unprimeable number, because it can be changed into a prime (1163113873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94168 + ... + 105800.

Almost surely, 2^1163113872 is an apocalyptic number.

1163113872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1163113872 is an abundant number, since it is smaller than the sum of its proper divisors (1843297872).

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

1163113872 is a wasteful number, since it uses less digits than its factorization.

1163113872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13727 (or 13721 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 1163113872 is about 34104.4553101204. The cubic root of 1163113872 is about 1051.6569069172.

The spelling of 1163113872 in words is "one billion, one hundred sixty-three million, one hundred thirteen thousand, eight hundred seventy-two".