1679923089566 has 16 divisors (see below), whose sum is σ = 2668393445760. Its totient is φ = 790988051160.

The previous prime is 1679923089557. The next prime is 1679923089631. The reversal of 1679923089566 is 6659803299761.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1679923089566.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 132354440 + ... + 132367131.

It is an arithmetic number, because the mean of its divisors is an integer number (166774590360).

Almost surely, 2^{1679923089566} is an apocalyptic number.

1679923089566 is a deficient number, since it is larger than the sum of its proper divisors (988470356194).

1679923089566 is a wasteful number, since it uses less digits than its factorization.

1679923089566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264721759.

The product of its (nonzero) digits is 264539520, while the sum is 71.

The spelling of 1679923089566 in words is "one trillion, six hundred seventy-nine billion, nine hundred twenty-three million, eighty-nine thousand, five hundred sixty-six".