2065538688 has 64 divisors (see below), whose sum is σ = 5675810400. Its totient is φ = 664767488.

The previous prime is 2065538687. The next prime is 2065538693. The reversal of 2065538688 is 8868355602.

2065538688 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×2065538688² = 8532900143249522688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2065538688.

It is not an unprimeable number, because it can be changed into a prime (2065538687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81606 + ... + 103877.

Almost surely, 2^2065538688 is an apocalyptic number.

It is an amenable number.

2065538688 is an abundant number, since it is smaller than the sum of its proper divisors (3610271712).

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

2065538688 is a wasteful number, since it uses less digits than its factorization.

2065538688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185529 (or 185517 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 51.

The square root of 2065538688 is about 45448.1978520601. The cubic root of 2065538688 is about 1273.5356635683.

The spelling of 2065538688 in words is "two billion, sixty-five million, five hundred thirty-eight thousand, six hundred eighty-eight".