2020156650 has 36 divisors (see below), whose sum is σ = 5427488742. Its totient is φ = 538708320.

The previous prime is 2020156609. The next prime is 2020156687. The reversal of 2020156650 is 566510202.

2020156650 is a `hidden beast` number, since 2 + 0 + 2 + 0 + 1 + 5 + 6 + 650 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1832439249 + 187717401 = 42807^2 + 13701^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2244169 + ... + 2245068.

Almost surely, 2^2020156650 is an apocalyptic number.

2020156650 is an abundant number, since it is smaller than the sum of its proper divisors (3407332092).

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

2020156650 is a wasteful number, since it uses less digits than its factorization.

2020156650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4489255 (or 4489247 counting only the distinct ones).

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

The square root of 2020156650 is about 44946.1527830803. The cubic root of 2020156650 is about 1264.1395409725.

Adding to 2020156650 its reverse (566510202), we get a palindrome (2586666852).

The spelling of 2020156650 in words is "two billion, twenty million, one hundred fifty-six thousand, six hundred fifty".