2065494816 has 480 divisors, whose sum is σ = 7727892480. Its totient is φ = 525657600.

The previous prime is 2065494803. The next prime is 2065494881. The reversal of 2065494816 is 6184945602.

2065494816 is a `hidden beast` number, since 20 + 6 + 549 + 4 + 81 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 15767071 + ... + 15767201.

It is an arithmetic number, because the mean of its divisors is an integer number (16099776).

Almost surely, 2^2065494816 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 2065494816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3863946240).

2065494816 is an abundant number, since it is smaller than the sum of its proper divisors (5662397664).

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

2065494816 is a wasteful number, since it uses less digits than its factorization.

2065494816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 2065494816 is about 45447.7151900951. The cubic root of 2065494816 is about 1273.5266468805.

The spelling of 2065494816 in words is "two billion, sixty-five million, four hundred ninety-four thousand, eight hundred sixteen".