11097197568 has 132 divisors (see below), whose sum is σ = 32339816080. Its totient is φ = 3664797696.

The previous prime is 11097197563. The next prime is 11097197597. The reversal of 11097197568 is 86579179011.

11097197568 is a `hidden beast` number, since 1 + 1 + 0 + 9 + 71 + 9 + 7 + 568 = 666.

It is a super-2 number, since 2×11097197568² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11097197561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 999021 + ... + 1010067.

Almost surely, 2^11097197568 is an apocalyptic number.

11097197568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11097197568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16169908040).

11097197568 is an abundant number, since it is smaller than the sum of its proper divisors (21242618512).

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

11097197568 is a wasteful number, since it uses less digits than its factorization.

11097197568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11182 (or 11161 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 54.

The spelling of 11097197568 in words is "eleven billion, ninety-seven million, one hundred ninety-seven thousand, five hundred sixty-eight".