2086855161 has 16 divisors (see below), whose sum is σ = 2822461824. Its totient is φ = 1371268224.

The previous prime is 2086855129. The next prime is 2086855171. The reversal of 2086855161 is 1615586802.

It is not a de Polignac number, because 2086855161 - 2⁵ = 2086855129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2086855171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 540540 + ... + 544386.

It is an arithmetic number, because the mean of its divisors is an integer number (176403864).

Almost surely, 2^2086855161 is an apocalyptic number.

It is an amenable number.

2086855161 is a deficient number, since it is larger than the sum of its proper divisors (735606663).

2086855161 is a wasteful number, since it uses less digits than its factorization.

2086855161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6400.

The product of its (nonzero) digits is 115200, while the sum is 42.

The square root of 2086855161 is about 45682.1098571421. The cubic root of 2086855161 is about 1277.9016647701.

The spelling of 2086855161 in words is "two billion, eighty-six million, eight hundred fifty-five thousand, one hundred sixty-one".