1666666683350 has 24 divisors (see below), whose sum is σ = 3101859814248. Its totient is φ = 666266720000.

The previous prime is 1666666683329. The next prime is 1666666683377. The reversal of 1666666683350 is 533866666661.

It is a hoax number, since the sum of its digits (62) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 9914651 + ... + 10081350.

It is an arithmetic number, because the mean of its divisors is an integer number (129244158927).

Almost surely, 2^{1666666683350} is an apocalyptic number.

1666666683350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1666666683350 is a deficient number, since it is larger than the sum of its proper divisors (1435193130898).

1666666683350 is a wasteful number, since it uses less digits than its factorization.

1666666683350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19997680 (or 19997675 counting only the distinct ones).

The product of its (nonzero) digits is 100776960, while the sum is 62.

The spelling of 1666666683350 in words is "one trillion, six hundred sixty-six billion, six hundred sixty-six million, six hundred eighty-three thousand, three hundred fifty".