10910920921920 has 672 divisors, whose sum is σ = 41220815500800. Its totient is φ = 2636668403712.

The previous prime is 10910920921909. The next prime is 10910920921921. The reversal of 10910920921920 is 2912902901901.

10910920921920 is a `hidden beast` number, since 109 + 109 + 209 + 219 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10910920921921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 521070811 + ... + 521091749.

Almost surely, 2^{10910920921920} is an apocalyptic number.

10910920921920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10910920921920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20610407750400).

10910920921920 is an abundant number, since it is smaller than the sum of its proper divisors (30309894578880).

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

10910920921920 is a wasteful number, since it uses less digits than its factorization.

10910920921920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21375 (or 21362 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 45.

The spelling of 10910920921920 in words is "ten trillion, nine hundred ten billion, nine hundred twenty million, nine hundred twenty-one thousand, nine hundred twenty".