2161283585 has 8 divisors (see below), whose sum is σ = 2593898880. Its totient is φ = 1728787824.

The previous prime is 2161283581. The next prime is 2161283603. The reversal of 2161283585 is 5853821612.

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

It is a cyclic number.

It is not a de Polignac number, because 2161283585 - 2² = 2161283581 is a prime.

It is a super-2 number, since 2×2161283585² = 9342293469580904450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2161283581) 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, 16424 + ... + 67766.

It is an arithmetic number, because the mean of its divisors is an integer number (324237360).

Almost surely, 2^2161283585 is an apocalyptic number.

It is an amenable number.

2161283585 is a deficient number, since it is larger than the sum of its proper divisors (432615295).

2161283585 is an equidigital number, since it uses as much as digits as its factorization.

2161283585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59767.

The product of its digits is 115200, while the sum is 41.

The square root of 2161283585 is about 46489.6072794770. The cubic root of 2161283585 is about 1292.9168188757.

The spelling of 2161283585 in words is "two billion, one hundred sixty-one million, two hundred eighty-three thousand, five hundred eighty-five".