1666683350 has 12 divisors (see below), whose sum is σ = 3100031124. Its totient is φ = 666673320.

The previous prime is 1666683341. The next prime is 1666683377. The reversal of 1666683350 is 533866661.

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 5 ways as a sum of consecutive naturals, for example, 16666784 + ... + 16666883.

It is an arithmetic number, because the mean of its divisors is an integer number (258335927).

Almost surely, 2^1666683350 is an apocalyptic number.

1666683350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1666683350 is a deficient number, since it is larger than the sum of its proper divisors (1433347774).

1666683350 is a wasteful number, since it uses less digits than its factorization.

1666683350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33333679 (or 33333674 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 1666683350 is about 40825.0333741443. The cubic root of 1666683350 is about 1185.6350575393.

The spelling of 1666683350 in words is "one billion, six hundred sixty-six million, six hundred eighty-three thousand, three hundred fifty".