2666342445 has 32 divisors (see below), whose sum is σ = 4610992512. Its totient is φ = 1307895552.

The previous prime is 2666342443. The next prime is 2666342453. The reversal of 2666342445 is 5442436662.

It is not a de Polignac number, because 2666342445 - 2¹ = 2666342443 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2666342397 and 2666342406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666342443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29334 + ... + 78696.

It is an arithmetic number, because the mean of its divisors is an integer number (144093516).

Almost surely, 2^2666342445 is an apocalyptic number.

It is an amenable number.

2666342445 is a deficient number, since it is larger than the sum of its proper divisors (1944650067).

2666342445 is a wasteful number, since it uses less digits than its factorization.

2666342445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49661.

The product of its digits is 829440, while the sum is 42.

The square root of 2666342445 is about 51636.6385912174. The cubic root of 2666342445 is about 1386.6663457364. Note that the first 3 decimals are identical.

The spelling of 2666342445 in words is "two billion, six hundred sixty-six million, three hundred forty-two thousand, four hundred forty-five".