11021540209848 has 48 divisors (see below), whose sum is σ = 34114291127280. Its totient is φ = 3149011488384.

The previous prime is 11021540209829. The next prime is 11021540209861. The reversal of 11021540209848 is 84890204512011.

11021540209848 is a `hidden beast` number, since 1 + 1 + 0 + 2 + 1 + 540 + 20 + 9 + 84 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10934067165 + ... + 10934068172.

It is an arithmetic number, because the mean of its divisors is an integer number (710714398485).

Almost surely, 2^{11021540209848} is an apocalyptic number.

11021540209848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11021540209848 is an abundant number, since it is smaller than the sum of its proper divisors (23092750917432).

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

11021540209848 is a wasteful number, since it uses less digits than its factorization.

11021540209848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21868135356 (or 21868135349 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The spelling of 11021540209848 in words is "eleven trillion, twenty-one billion, five hundred forty million, two hundred nine thousand, eight hundred forty-eight".