10891330880 has 56 divisors (see below), whose sum is σ = 25943978592. Its totient is φ = 4355021312.

The previous prime is 10891330819. The next prime is 10891330909. The reversal of 10891330880 is 8803319801.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1597559 + ... + 1604361.

It is an arithmetic number, because the mean of its divisors is an integer number (463285332).

Almost surely, 2^10891330880 is an apocalyptic number.

10891330880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10891330880 is an abundant number, since it is smaller than the sum of its proper divisors (15052647712).

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

10891330880 is an equidigital number, since it uses as much as digits as its factorization.

10891330880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11823 (or 11813 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The spelling of 10891330880 in words is "ten billion, eight hundred ninety-one million, three hundred thirty thousand, eight hundred eighty".