11161190816 has 24 divisors (see below), whose sum is σ = 21977226180. Its totient is φ = 5579673088.

The previous prime is 11161190813. The next prime is 11161190819. The reversal of 11161190816 is 61809116111.

It is an interprime number because it is at equal distance from previous prime (11161190813) and next prime (11161190819).

It can be written as a sum of positive squares in 2 ways, for example, as 10953715600 + 207475216 = 104660^2 + 14404^2 .

It is not an unprimeable number, because it can be changed into a prime (11161190813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194420 + ... + 245196.

Almost surely, 2^11161190816 is an apocalyptic number.

11161190816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11161190816 is a deficient number, since it is larger than the sum of its proper divisors (10816035364).

11161190816 is an equidigital number, since it uses as much as digits as its factorization.

11161190816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57656 (or 57648 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 35.

The spelling of 11161190816 in words is "eleven billion, one hundred sixty-one million, one hundred ninety thousand, eight hundred sixteen".