9111196641 has 4 divisors (see below), whose sum is σ = 12148262192. Its totient is φ = 6074131092.

The previous prime is 9111196621. The next prime is 9111196657. The reversal of 9111196641 is 1466911119.

9111196641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9111196641 - 2¹⁰ = 9111195617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9111196641.

It is not an unprimeable number, because it can be changed into a prime (9111196621) by changing a digit.

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, 1518532771 + ... + 1518532776.

It is an arithmetic number, because the mean of its divisors is an integer number (3037065548).

Almost surely, 2^9111196641 is an apocalyptic number.

It is an amenable number.

9111196641 is a deficient number, since it is larger than the sum of its proper divisors (3037065551).

9111196641 is a wasteful number, since it uses less digits than its factorization.

9111196641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3037065550.

The product of its digits is 11664, while the sum is 39.

The square root of 9111196641 is about 95452.5884457829. The cubic root of 9111196641 is about 2088.6153875532.

The spelling of 9111196641 in words is "nine billion, one hundred eleven million, one hundred ninety-six thousand, six hundred forty-one".