1668537203350 has 48 divisors (see below), whose sum is σ = 3190906143936. Its totient is φ = 648733536000.

The previous prime is 1668537203287. The next prime is 1668537203479. The reversal of 1668537203350 is 533027358661.

It is a junction number, because it is equal to n+sod(n) for n = 1668537203294 and 1668537203303.

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 23 ways as a sum of consecutive naturals, for example, 946149 + ... + 2057248.

It is an arithmetic number, because the mean of its divisors is an integer number (66477211332).

Almost surely, 2^{1668537203350} is an apocalyptic number.

1668537203350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1668537203350 is a deficient number, since it is larger than the sum of its proper divisors (1522368940586).

1668537203350 is a wasteful number, since it uses less digits than its factorization.

1668537203350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003721 (or 3003716 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 49.

The spelling of 1668537203350 in words is "one trillion, six hundred sixty-eight billion, five hundred thirty-seven million, two hundred three thousand, three hundred fifty".