11165212772 has 24 divisors (see below), whose sum is σ = 22547231616. Its totient is φ = 4738632768.

The previous prime is 11165212771. The next prime is 11165212777. The reversal of 11165212772 is 27721256111.

11165212772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11165212771) 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 7 ways as a sum of consecutive naturals, for example, 1932833 + ... + 1938600.

It is an arithmetic number, because the mean of its divisors is an integer number (939467984).

Almost surely, 2^11165212772 is an apocalyptic number.

It is an amenable number.

11165212772 is an abundant number, since it is smaller than the sum of its proper divisors (11382018844).

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

11165212772 is a wasteful number, since it uses less digits than its factorization.

11165212772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871547 (or 3871545 counting only the distinct ones).

The product of its digits is 11760, while the sum is 35.

Adding to 11165212772 its reverse (27721256111), we get a palindrome (38886468883).

The spelling of 11165212772 in words is "eleven billion, one hundred sixty-five million, two hundred twelve thousand, seven hundred seventy-two".