2109659224920 has 576 divisors, whose sum is σ = 7087566458880. Its totient is φ = 502094121984.

The previous prime is 2109659224861. The next prime is 2109659224943. The reversal of 2109659224920 is 294229569012.

It is a congruent number.

It is an unprimeable number.

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 143 ways as a sum of consecutive naturals, for example, 4762210219 + ... + 4762210661.

It is an arithmetic number, because the mean of its divisors is an integer number (12304802880).

Almost surely, 2^{2109659224920} is an apocalyptic number.

2109659224920 is a gapful number since it is divisible by the number (20) 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 2109659224920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3543783229440).

2109659224920 is an abundant number, since it is smaller than the sum of its proper divisors (4977907233960).

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

2109659224920 is a wasteful number, since it uses less digits than its factorization.

2109659224920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 51.

The spelling of 2109659224920 in words is "two trillion, one hundred nine billion, six hundred fifty-nine million, two hundred twenty-four thousand, nine hundred twenty".