6607866394579 has 4 divisors (see below), whose sum is σ = 6669622155384. Its totient is φ = 6546110633776.

The previous prime is 6607866394537. The next prime is 6607866394667. The reversal of 6607866394579 is 9754936687066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6607866394579 - 2²¹ = 6607864297427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6607866394279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30877880242 + ... + 30877880455.

It is an arithmetic number, because the mean of its divisors is an integer number (1667405538846).

Almost surely, 2^{6607866394579} is an apocalyptic number.

6607866394579 is a deficient number, since it is larger than the sum of its proper divisors (61755760805).

6607866394579 is a wasteful number, since it uses less digits than its factorization.

6607866394579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61755760804.

The product of its (nonzero) digits is 2469035520, while the sum is 76.

The spelling of 6607866394579 in words is "six trillion, six hundred seven billion, eight hundred sixty-six million, three hundred ninety-four thousand, five hundred seventy-nine".