1306680807866 has 32 divisors (see below), whose sum is σ = 2247489504000. Its totient is φ = 558140169600.

The previous prime is 1306680807853. The next prime is 1306680807931. The reversal of 1306680807866 is 6687080866031.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64520510 + ... + 64540758.

It is an arithmetic number, because the mean of its divisors is an integer number (70234047000).

Almost surely, 2^{1306680807866} is an apocalyptic number.

1306680807866 is a deficient number, since it is larger than the sum of its proper divisors (940808696134).

1306680807866 is a wasteful number, since it uses less digits than its factorization.

1306680807866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35390.

The product of its (nonzero) digits is 13934592, while the sum is 59.

The spelling of 1306680807866 in words is "one trillion, three hundred six billion, six hundred eighty million, eight hundred seven thousand, eight hundred sixty-six".