2705167645 has 4 divisors (see below), whose sum is σ = 3246201180. Its totient is φ = 2164134112.

The previous prime is 2705167639. The next prime is 2705167649. The reversal of 2705167645 is 5467615072.

2705167645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2156952249 + 548215396 = 46443^2 + 23414^2 .

It is a cyclic number.

It is not a de Polignac number, because 2705167645 - 2³ = 2705167637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2705167649) 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, 270516760 + ... + 270516769.

It is an arithmetic number, because the mean of its divisors is an integer number (811550295).

Almost surely, 2^2705167645 is an apocalyptic number.

It is an amenable number.

2705167645 is a deficient number, since it is larger than the sum of its proper divisors (541033535).

2705167645 is an equidigital number, since it uses as much as digits as its factorization.

2705167645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541033534.

The product of its (nonzero) digits is 352800, while the sum is 43.

The square root of 2705167645 is about 52011.2261439778. The cubic root of 2705167645 is about 1393.3644573770.

The spelling of 2705167645 in words is "two billion, seven hundred five million, one hundred sixty-seven thousand, six hundred forty-five".