2065784845625 has 20 divisors (see below), whose sum is σ = 2733252094980. Its totient is φ = 1555414464000.

The previous prime is 2065784845601. The next prime is 2065784845633. The reversal of 2065784845625 is 5265484875602.

It can be written as a sum of positive squares in 10 ways, for example, as 1677162272809 + 388622572816 = 1295053^2 + 623396^2 .

It is not a de Polignac number, because 2065784845625 - 2²⁸ = 2065516410169 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 97202780 + ... + 97224029.

It is an arithmetic number, because the mean of its divisors is an integer number (136662604749).

Almost surely, 2^{2065784845625} is an apocalyptic number.

2065784845625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2065784845625 is a deficient number, since it is larger than the sum of its proper divisors (667467249355).

2065784845625 is an equidigital number, since it uses as much as digits as its factorization.

2065784845625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194426846 (or 194426831 counting only the distinct ones).

The product of its (nonzero) digits is 129024000, while the sum is 62.

The spelling of 2065784845625 in words is "two trillion, sixty-five billion, seven hundred eighty-four million, eight hundred forty-five thousand, six hundred twenty-five".