2020616161 has 8 divisors (see below), whose sum is σ = 2178842400. Its totient is φ = 1867577760.

The previous prime is 2020616137. The next prime is 2020616189. The reversal of 2020616161 is 1616160202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020616161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020610161) 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, 1296151 + ... + 1297708.

It is an arithmetic number, because the mean of its divisors is an integer number (272355300).

Almost surely, 2^2020616161 is an apocalyptic number.

It is an amenable number.

2020616161 is a deficient number, since it is larger than the sum of its proper divisors (158226239).

2020616161 is a wasteful number, since it uses less digits than its factorization.

2020616161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2593919.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2020616161 is about 44951.2642870031. The cubic root of 2020616161 is about 1264.2353820527.

Adding to 2020616161 its reverse (1616160202), we get a palindrome (3636776363).

The spelling of 2020616161 in words is "two billion, twenty million, six hundred sixteen thousand, one hundred sixty-one".