7666334449 has 8 divisors (see below), whose sum is σ = 7696620360. Its totient is φ = 7636070400.

The previous prime is 7666334413. The next prime is 7666334497. The reversal of 7666334449 is 9444336667.

7666334449 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2588774400 + 5077560049 = 50880^2 + 71257^2 .

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 7666334449 - 2⁷ = 7666334321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7666334396 and 7666334405.

It is not an unprimeable number, because it can be changed into a prime (7666334749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1202029 + ... + 1208389.

It is an arithmetic number, because the mean of its divisors is an integer number (962077545).

Almost surely, 2^7666334449 is an apocalyptic number.

It is an amenable number.

7666334449 is a deficient number, since it is larger than the sum of its proper divisors (30285911).

7666334449 is a wasteful number, since it uses less digits than its factorization.

7666334449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10931.

The product of its digits is 7838208, while the sum is 52.

The square root of 7666334449 is about 87557.6064599758. The cubic root of 7666334449 is about 1971.7987512638.

The spelling of 7666334449 in words is "seven billion, six hundred sixty-six million, three hundred thirty-four thousand, four hundred forty-nine".