11085821642 has 24 divisors (see below), whose sum is σ = 19364833440. Its totient is φ = 4745858040.

The previous prime is 11085821639. The next prime is 11085821647. The reversal of 11085821642 is 24612858011.

It is a junction number, because it is equal to n+sod(n) for n = 11085821596 and 11085821605.

It is not an unprimeable number, because it can be changed into a prime (11085821647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28517 + ... + 151607.

It is an arithmetic number, because the mean of its divisors is an integer number (806868060).

Almost surely, 2^11085821642 is an apocalyptic number.

11085821642 is a deficient number, since it is larger than the sum of its proper divisors (8279011798).

11085821642 is a wasteful number, since it uses less digits than its factorization.

11085821642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124026 (or 124019 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The spelling of 11085821642 in words is "eleven billion, eighty-five million, eight hundred twenty-one thousand, six hundred forty-two".