11168731880 has 16 divisors (see below), whose sum is σ = 25129646820. Its totient is φ = 4467492736.

The previous prime is 11168731837. The next prime is 11168731891. The reversal of 11168731880 is 8813786111.

11168731880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9896668324 + 1272063556 = 99482^2 + 35666^2 .

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 3 ways as a sum of consecutive naturals, for example, 139609109 + ... + 139609188.

Almost surely, 2^11168731880 is an apocalyptic number.

11168731880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11168731880 is an abundant number, since it is smaller than the sum of its proper divisors (13960914940).

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

11168731880 is a wasteful number, since it uses less digits than its factorization.

11168731880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279218308 (or 279218304 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 44.

The spelling of 11168731880 in words is "eleven billion, one hundred sixty-eight million, seven hundred thirty-one thousand, eight hundred eighty".