11109686648 has 16 divisors (see below), whose sum is σ = 20893599960. Its totient is φ = 5538060000.

The previous prime is 11109686639. The next prime is 11109686689. The reversal of 11109686648 is 84668690111.

It is a junction number, because it is equal to n+sod(n) for n = 11109686596 and 11109686605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2095103 + ... + 2100398.

Almost surely, 2^11109686648 is an apocalyptic number.

It is an amenable number.

11109686648 is a deficient number, since it is larger than the sum of its proper divisors (9783913312).

11109686648 is a wasteful number, since it uses less digits than its factorization.

11109686648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4195838 (or 4195834 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 50.

The spelling of 11109686648 in words is "eleven billion, one hundred nine million, six hundred eighty-six thousand, six hundred forty-eight".