708066666409 has 8 divisors (see below), whose sum is σ = 762008101128. Its totient is φ = 655490837760.

The previous prime is 708066666343. The next prime is 708066666431. The reversal of 708066666409 is 904666660807.

It can be written as a sum of positive squares in 4 ways, for example, as 43796025625 + 664270640784 = 209275^2 + 815028^2 .

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 708066666409 - 2⁹ = 708066665897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (708066666499) 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, 341400442 + ... + 341402515.

It is an arithmetic number, because the mean of its divisors is an integer number (95251012641).

Almost surely, 2^708066666409 is an apocalyptic number.

It is an amenable number.

708066666409 is a deficient number, since it is larger than the sum of its proper divisors (53941434719).

708066666409 is a wasteful number, since it uses less digits than its factorization.

708066666409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682803035.

The product of its (nonzero) digits is 15676416, while the sum is 58.

The spelling of 708066666409 in words is "seven hundred eight billion, sixty-six million, six hundred sixty-six thousand, four hundred nine".