11001663554 has 24 divisors (see below), whose sum is σ = 20031427008. Its totient is φ = 4509997800.

The previous prime is 11001663539. The next prime is 11001663641. The reversal of 11001663554 is 45536610011.

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 11001663554.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2438222 + ... + 2442729.

It is an arithmetic number, because the mean of its divisors is an integer number (834642792).

Almost surely, 2^11001663554 is an apocalyptic number.

11001663554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11001663554 is a deficient number, since it is larger than the sum of its proper divisors (9029763454).

11001663554 is a wasteful number, since it uses less digits than its factorization.

11001663554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4880990 (or 4880983 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 11001663554 in words is "eleven billion, one million, six hundred sixty-three thousand, five hundred fifty-four".