1668484850 has 24 divisors (see below), whose sum is σ = 3115769328. Its totient is φ = 664730000.

The previous prime is 1668484849. The next prime is 1668484879. The reversal of 1668484850 is 584848661.

It is a Harshad number since it is a multiple of its sum of digits (50).

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 11 ways as a sum of consecutive naturals, for example, 53924 + ... + 79023.

It is an arithmetic number, because the mean of its divisors is an integer number (129823722).

Almost surely, 2^1668484850 is an apocalyptic number.

1668484850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1668484850 is a deficient number, since it is larger than the sum of its proper divisors (1447284478).

1668484850 is a wasteful number, since it uses less digits than its factorization.

1668484850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133210 (or 133205 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 50.

The square root of 1668484850 is about 40847.0910836990. The cubic root of 1668484850 is about 1186.0620837554.

The spelling of 1668484850 in words is "one billion, six hundred sixty-eight million, four hundred eighty-four thousand, eight hundred fifty".