1368682240666 has 16 divisors (see below), whose sum is σ = 2238934924800. Its totient is φ = 623703298608.

The previous prime is 1368682240631. The next prime is 1368682240711. The reversal of 1368682240666 is 6660422868631.

It is a self number, because there is not a number n which added to its sum of digits gives 1368682240666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333172786 + ... + 333176893.

It is an arithmetic number, because the mean of its divisors is an integer number (139933432800).

Almost surely, 2^{1368682240666} is an apocalyptic number.

1368682240666 is a deficient number, since it is larger than the sum of its proper divisors (870252684134).

1368682240666 is a wasteful number, since it uses less digits than its factorization.

1368682240666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666349773.

The product of its (nonzero) digits is 23887872, while the sum is 58.

The spelling of 1368682240666 in words is "one trillion, three hundred sixty-eight billion, six hundred eighty-two million, two hundred forty thousand, six hundred sixty-six".