2020605651 has 12 divisors (see below), whose sum is σ = 2926160640. Its totient is φ = 1343605200.

The previous prime is 2020605607. The next prime is 2020605659. The reversal of 2020605651 is 1565060202.

2020605651 is a `hidden beast` number, since 2 + 0 + 2 + 0 + 6 + 0 + 5 + 651 = 666.

It is not a de Polignac number, because 2020605651 - 2⁷ = 2020605523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2020605659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 285075 + ... + 292076.

It is an arithmetic number, because the mean of its divisors is an integer number (243846720).

Almost surely, 2^2020605651 is an apocalyptic number.

2020605651 is a deficient number, since it is larger than the sum of its proper divisors (905554989).

2020605651 is a wasteful number, since it uses less digits than its factorization.

2020605651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577546 (or 577543 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 2020605651 is about 44951.1473824640. The cubic root of 2020605651 is about 1264.2331901245.

Adding to 2020605651 its reverse (1565060202), we get a palindrome (3585665853).

The spelling of 2020605651 in words is "two billion, twenty million, six hundred five thousand, six hundred fifty-one".