1668501683336 has 16 divisors (see below), whose sum is σ = 3128467957440. Its totient is φ = 834243561360.

The previous prime is 1668501683243. The next prime is 1668501683351. The reversal of 1668501683336 is 6333861058661.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134501 + ... + 1831691.

It is an arithmetic number, because the mean of its divisors is an integer number (195529247340).

Almost surely, 2^{1668501683336} is an apocalyptic number.

It is an amenable number.

1668501683336 is a deficient number, since it is larger than the sum of its proper divisors (1459966274104).

1668501683336 is a wasteful number, since it uses less digits than its factorization.

1668501683336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820084 (or 1820080 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 56.

The spelling of 1668501683336 in words is "one trillion, six hundred sixty-eight billion, five hundred one million, six hundred eighty-three thousand, three hundred thirty-six".