2170885163 has 4 divisors (see below), whose sum is σ = 2172380688. Its totient is φ = 2169389640.

The previous prime is 2170885139. The next prime is 2170885177. The reversal of 2170885163 is 3615880712.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2170885163 - 2⁸ = 2170884907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2170885163.

It is not an unprimeable number, because it can be changed into a prime (2170885133) 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, 745583 + ... + 748488.

It is an arithmetic number, because the mean of its divisors is an integer number (543095172).

Almost surely, 2^2170885163 is an apocalyptic number.

2170885163 is a deficient number, since it is larger than the sum of its proper divisors (1495525).

2170885163 is a wasteful number, since it uses less digits than its factorization.

2170885163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495524.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 2170885163 is about 46592.7586970336. The cubic root of 2170885163 is about 1294.8286000252.

The spelling of 2170885163 in words is "two billion, one hundred seventy million, eight hundred eighty-five thousand, one hundred sixty-three".