2109005458560 has 3072 divisors, whose sum is σ = 10295747481600. Its totient is φ = 396114001920.

The previous prime is 2109005458541. The next prime is 2109005458561. The reversal of 2109005458560 is 658545009012.

2109005458560 is a `hidden beast` number, since 2 + 1 + 0 + 9 + 0 + 0 + 5 + 4 + 585 + 60 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (2109005458561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 18663765064 + ... + 18663765176.

It is an arithmetic number, because the mean of its divisors is an integer number (3351480300).

Almost surely, 2^{2109005458560} is an apocalyptic number.

2109005458560 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 2109005458560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5147873740800).

2109005458560 is an abundant number, since it is smaller than the sum of its proper divisors (8186742023040).

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

2109005458560 is a wasteful number, since it uses less digits than its factorization.

2109005458560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 45.

The spelling of 2109005458560 in words is "two trillion, one hundred nine billion, five million, four hundred fifty-eight thousand, five hundred sixty".