2160555617 has 4 divisors (see below), whose sum is σ = 2356969776. Its totient is φ = 1964141460.

The previous prime is 2160555589. The next prime is 2160555629. The reversal of 2160555617 is 7165550612.

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 2160555617 - 2¹⁶ = 2160490081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2160555637) 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, 98207063 + ... + 98207084.

It is an arithmetic number, because the mean of its divisors is an integer number (589242444).

Almost surely, 2^2160555617 is an apocalyptic number.

It is an amenable number.

2160555617 is a deficient number, since it is larger than the sum of its proper divisors (196414159).

2160555617 is a wasteful number, since it uses less digits than its factorization.

2160555617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196414158.

The product of its (nonzero) digits is 63000, while the sum is 38.

The square root of 2160555617 is about 46481.7772573296. Note that the first 3 decimals coincide. The cubic root of 2160555617 is about 1292.7716416039.

The spelling of 2160555617 in words is "two billion, one hundred sixty million, five hundred fifty-five thousand, six hundred seventeen".