2065297920 has 320 divisors, whose sum is σ = 7738004736. Its totient is φ = 460062720.

The previous prime is 2065297909. The next prime is 2065297933. The reversal of 2065297920 is 297925602.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2203692 + ... + 2204628.

Almost surely, 2^2065297920 is an apocalyptic number.

2065297920 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 2065297920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3869002368).

2065297920 is an abundant number, since it is smaller than the sum of its proper divisors (5672706816).

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

2065297920 is an equidigital number, since it uses as much as digits as its factorization.

2065297920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011 (or 995 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 2065297920 is about 45445.5489569661. The cubic root of 2065297920 is about 1273.4861787291.

The spelling of 2065297920 in words is "two billion, sixty-five million, two hundred ninety-seven thousand, nine hundred twenty".