2065622220 has 36 divisors (see below), whose sum is σ = 6265721280. Its totient is φ = 550832544.

The previous prime is 2065622219. The next prime is 2065622257. The reversal of 2065622220 is 222265602.

2065622220 is a `hidden beast` number, since 2 + 0 + 656 + 2 + 2 + 2 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5737660 + ... + 5738019.

Almost surely, 2^2065622220 is an apocalyptic number.

2065622220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2065622220 is an abundant number, since it is smaller than the sum of its proper divisors (4200099060).

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

2065622220 is a wasteful number, since it uses less digits than its factorization.

2065622220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11475694 (or 11475689 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2065622220 is about 45449.1168231023. The cubic root of 2065622220 is about 1273.5528309296.

Adding to 2065622220 its reverse (222265602), we get a palindrome (2287887822).

The spelling of 2065622220 in words is "two billion, sixty-five million, six hundred twenty-two thousand, two hundred twenty".