2020650161 has 4 divisors (see below), whose sum is σ = 2020895232. Its totient is φ = 2020405092.

The previous prime is 2020650157. The next prime is 2020650187. The reversal of 2020650161 is 1610560202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2020650161 - 2² = 2020650157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020650061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109721 + ... + 126806.

It is an arithmetic number, because the mean of its divisors is an integer number (505223808).

Almost surely, 2^2020650161 is an apocalyptic number.

It is an amenable number.

2020650161 is a deficient number, since it is larger than the sum of its proper divisors (245071).

2020650161 is an equidigital number, since it uses as much as digits as its factorization.

2020650161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245070.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2020650161 is about 44951.6424727729. The cubic root of 2020650161 is about 1264.2424729198.

The spelling of 2020650161 in words is "two billion, twenty million, six hundred fifty thousand, one hundred sixty-one".