2106065826 has 64 divisors (see below), whose sum is σ = 4828675200. Its totient is φ = 679917888.

The previous prime is 2106065813. The next prime is 2106065827. The reversal of 2106065826 is 6285606012.

2106065826 is a `hidden beast` number, since 2 + 10 + 60 + 6 + 582 + 6 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2106065827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 455241 + ... + 459843.

It is an arithmetic number, because the mean of its divisors is an integer number (75448050).

Almost surely, 2^2106065826 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2106065826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2414337600).

2106065826 is an abundant number, since it is smaller than the sum of its proper divisors (2722609374).

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

2106065826 is a wasteful number, since it uses less digits than its factorization.

2106065826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4880 (or 4874 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2106065826 is about 45891.8928134371. The cubic root of 2106065826 is about 1281.8109591675.

The spelling of 2106065826 in words is "two billion, one hundred six million, sixty-five thousand, eight hundred twenty-six".