2448617665 has 16 divisors (see below), whose sum is σ = 3166018128. Its totient is φ = 1807266816.

The previous prime is 2448617663. The next prime is 2448617669. The reversal of 2448617665 is 5667168442.

It can be written as a sum of positive squares in 8 ways, for example, as 1472180161 + 976437504 = 38369^2 + 31248^2 .

It is a cyclic number.

It is not a de Polignac number, because 2448617665 - 2¹ = 2448617663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2448617663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131197 + ... + 148693.

It is an arithmetic number, because the mean of its divisors is an integer number (197876133).

Almost surely, 2^2448617665 is an apocalyptic number.

It is an amenable number.

2448617665 is a deficient number, since it is larger than the sum of its proper divisors (717400463).

2448617665 is a wasteful number, since it uses less digits than its factorization.

2448617665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19668.

The product of its digits is 1935360, while the sum is 49.

The square root of 2448617665 is about 49483.5090206828. The cubic root of 2448617665 is about 1347.8461613089.

The spelling of 2448617665 in words is "two billion, four hundred forty-eight million, six hundred seventeen thousand, six hundred sixty-five".