2164344265 has 8 divisors (see below), whose sum is σ = 2608556040. Its totient is φ = 1723913472.

The previous prime is 2164344197. The next prime is 2164344289. The reversal of 2164344265 is 5624434612.

It can be written as a sum of positive squares in 4 ways, for example, as 264517696 + 1899826569 = 16264^2 + 43587^2 .

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 2164344265 - 2¹¹ = 2164342217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 943984 + ... + 946273.

It is an arithmetic number, because the mean of its divisors is an integer number (326069505).

Almost surely, 2^2164344265 is an apocalyptic number.

It is an amenable number.

2164344265 is a deficient number, since it is larger than the sum of its proper divisors (444211775).

2164344265 is a wasteful number, since it uses less digits than its factorization.

2164344265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890491.

The product of its digits is 138240, while the sum is 37.

The square root of 2164344265 is about 46522.5135283983. The cubic root of 2164344265 is about 1293.5268480515.

Adding to 2164344265 its reverse (5624434612), we get a palindrome (7788778877).

The spelling of 2164344265 in words is "two billion, one hundred sixty-four million, three hundred forty-four thousand, two hundred sixty-five".