2065898520 has 448 divisors, whose sum is σ = 8263080000. Its totient is φ = 454616064.

The previous prime is 2065898509. The next prime is 2065898521. The reversal of 2065898520 is 258985602.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065898521) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 5919306 + ... + 5919654.

It is an arithmetic number, because the mean of its divisors is an integer number (18444375).

Almost surely, 2^2065898520 is an apocalyptic number.

2065898520 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 2065898520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4131540000).

2065898520 is an abundant number, since it is smaller than the sum of its proper divisors (6197181480).

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

2065898520 is a wasteful number, since it uses less digits than its factorization.

2065898520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 2065898520 is about 45452.1563844885. The cubic root of 2065898520 is about 1273.6096123610.

The spelling of 2065898520 in words is "two billion, sixty-five million, eight hundred ninety-eight thousand, five hundred twenty".