2666324465 has 12 divisors (see below), whose sum is σ = 3721971636. Its totient is φ = 1828336608.

The previous prime is 2666324449. The next prime is 2666324471. The reversal of 2666324465 is 5644236662.

It can be written as a sum of positive squares in 2 ways, for example, as 926350096 + 1739974369 = 30436^2 + 41713^2 .

It is not a de Polignac number, because 2666324465 - 2⁴ = 2666324449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5441234 + ... + 5441723.

It is an arithmetic number, because the mean of its divisors is an integer number (310164303).

Almost surely, 2^2666324465 is an apocalyptic number.

It is an amenable number.

2666324465 is a deficient number, since it is larger than the sum of its proper divisors (1055647171).

2666324465 is a wasteful number, since it uses less digits than its factorization.

2666324465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10882976 (or 10882969 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 44.

The square root of 2666324465 is about 51636.4644897383. The cubic root of 2666324465 is about 1386.6632288179.

The spelling of 2666324465 in words is "two billion, six hundred sixty-six million, three hundred twenty-four thousand, four hundred sixty-five".