2666443124 has 6 divisors (see below), whose sum is σ = 4666275474. Its totient is φ = 1333221560.

The previous prime is 2666443097. The next prime is 2666443141. The reversal of 2666443124 is 4213446662.

It can be written as a sum of positive squares in only one way, i.e., 2655340900 + 11102224 = 51530^2 + 3332^2 .

It is a congruent 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 as a sum of consecutive naturals, namely, 333305387 + ... + 333305394.

It is an arithmetic number, because the mean of its divisors is an integer number (777712579).

Almost surely, 2^2666443124 is an apocalyptic number.

It is an amenable number.

2666443124 is a deficient number, since it is larger than the sum of its proper divisors (1999832350).

2666443124 is a wasteful number, since it uses less digits than its factorization.

2666443124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666610785 (or 666610783 counting only the distinct ones).

The product of its digits is 165888, while the sum is 38.

The square root of 2666443124 is about 51637.6134615069. The cubic root of 2666443124 is about 1386.6837986614.

Adding to 2666443124 its reverse (4213446662), we get a palindrome (6879889786).

The spelling of 2666443124 in words is "two billion, six hundred sixty-six million, four hundred forty-three thousand, one hundred twenty-four".