2065073640 has 384 divisors, whose sum is σ = 7762469760. Its totient is φ = 436617216.

The previous prime is 2065073629. The next prime is 2065073749. The reversal of 2065073640 is 463705602.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7296939 + ... + 7297221.

It is an arithmetic number, because the mean of its divisors is an integer number (20214765).

Almost surely, 2^2065073640 is an apocalyptic number.

2065073640 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 2065073640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3881234880).

2065073640 is an abundant number, since it is smaller than the sum of its proper divisors (5697396120).

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

2065073640 is a wasteful number, since it uses less digits than its factorization.

2065073640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 2065073640 is about 45443.0813215829. The cubic root of 2065073640 is about 1273.4400791943.

The spelling of 2065073640 in words is "two billion, sixty-five million, seventy-three thousand, six hundred forty".