2176245165 has 24 divisors (see below), whose sum is σ = 3639978720. Its totient is φ = 1110196384.

The previous prime is 2176245163. The next prime is 2176245241. The reversal of 2176245165 is 5615426712.

It is not a de Polignac number, because 2176245165 - 2¹ = 2176245163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2176245163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129195 + ... + 145064.

It is an arithmetic number, because the mean of its divisors is an integer number (151665780).

Almost surely, 2^2176245165 is an apocalyptic number.

It is an amenable number.

2176245165 is a deficient number, since it is larger than the sum of its proper divisors (1463733555).

2176245165 is a wasteful number, since it uses less digits than its factorization.

2176245165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274313 (or 274290 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 2176245165 is about 46650.2429254125. The cubic root of 2176245165 is about 1295.8933853150.

The spelling of 2176245165 in words is "two billion, one hundred seventy-six million, two hundred forty-five thousand, one hundred sixty-five".