1920108099168 has 96 divisors (see below), whose sum is σ = 6400360350720. Its totient is φ = 548602312320.

The previous prime is 1920108099163. The next prime is 1920108099191. The reversal of 1920108099168 is 8619908010291.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1920108099168² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920108099163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158733048 + ... + 158745143.

It is an arithmetic number, because the mean of its divisors is an integer number (66670420320).

Almost surely, 2^{1920108099168} is an apocalyptic number.

1920108099168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1920108099168 is an abundant number, since it is smaller than the sum of its proper divisors (4480252251552).

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

1920108099168 is a wasteful number, since it uses less digits than its factorization.

1920108099168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317478217 (or 317478203 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 54.

The spelling of 1920108099168 in words is "one trillion, nine hundred twenty billion, one hundred eight million, ninety-nine thousand, one hundred sixty-eight".