11021168880 has 160 divisors (see below), whose sum is σ = 39959942400. Its totient is φ = 2784284928.

The previous prime is 11021168863. The next prime is 11021168881. The reversal of 11021168880 is 8886112011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021168881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93234 + ... + 175313.

It is an arithmetic number, because the mean of its divisors is an integer number (249749640).

Almost surely, 2^11021168880 is an apocalyptic number.

11021168880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11021168880 is an abundant number, since it is smaller than the sum of its proper divisors (28938773520).

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

11021168880 is a wasteful number, since it uses less digits than its factorization.

11021168880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268588 (or 268576 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 36.

The spelling of 11021168880 in words is "eleven billion, twenty-one million, one hundred sixty-eight thousand, eight hundred eighty".