2065680128 has 18 divisors (see below), whose sum is σ = 4123291704. Its totient is φ = 1032839936.

The previous prime is 2065680119. The next prime is 2065680131. The reversal of 2065680128 is 8210865602.

It is a junction number, because it is equal to n+sod(n) for n = 2065680091 and 2065680100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4034276 + ... + 4034787.

Almost surely, 2^2065680128 is an apocalyptic number.

It is an amenable number.

2065680128 is a deficient number, since it is larger than the sum of its proper divisors (2057611576).

2065680128 is an frugal number, since it uses more digits than its factorization.

2065680128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8069079 (or 8069065 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 2065680128 is about 45449.7538827220. The cubic root of 2065680128 is about 1273.5647318163.

The spelling of 2065680128 in words is "two billion, sixty-five million, six hundred eighty thousand, one hundred twenty-eight".