2065380063840 has 384 divisors, whose sum is σ = 7416512409600. Its totient is φ = 536634040320.

The previous prime is 2065380063731. The next prime is 2065380063841. The reversal of 2065380063840 is 483600835602.

It is a happy number.

2065380063840 is a `hidden beast` number, since 2 + 0 + 6 + 5 + 3 + 8 + 0 + 0 + 638 + 4 + 0 = 666.

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 (2065380063841) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28765585 + ... + 28837295.

It is an arithmetic number, because the mean of its divisors is an integer number (19313834400).

Almost surely, 2^{2065380063840} is an apocalyptic number.

2065380063840 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 2065380063840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3708256204800).

2065380063840 is an abundant number, since it is smaller than the sum of its proper divisors (5351132345760).

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

2065380063840 is a wasteful number, since it uses less digits than its factorization.

2065380063840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71907 (or 71893 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 2065380063840 in words is "two trillion, sixty-five billion, three hundred eighty million, sixty-three thousand, eight hundred forty".