2065001856 has 64 divisors (see below), whose sum is σ = 5554675200. Its totient is φ = 679610880.

The previous prime is 2065001837. The next prime is 2065001891. The reversal of 2065001856 is 6581005602.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3700 + ... + 64371.

It is an arithmetic number, because the mean of its divisors is an integer number (86791800).

Almost surely, 2^2065001856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2065001856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2777337600).

2065001856 is an abundant number, since it is smaller than the sum of its proper divisors (3489673344).

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

2065001856 is an equidigital number, since it uses as much as digits as its factorization.

2065001856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68167 (or 68155 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 2065001856 is about 45442.2914915170. The cubic root of 2065001856 is about 1273.4253236783.

The spelling of 2065001856 in words is "two billion, sixty-five million, one thousand, eight hundred fifty-six".