1668500018350 has 36 divisors (see below), whose sum is σ = 3411186248232. Its totient is φ = 606727277200.

The previous prime is 1668500018327. The next prime is 1668500018447. The reversal of 1668500018350 is 538100058661.

It is a super-2 number, since 2×1668500018350² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1668500018297 and 1668500018306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 137886514 + ... + 137898613.

It is an arithmetic number, because the mean of its divisors is an integer number (94755173562).

Almost surely, 2^{1668500018350} is an apocalyptic number.

1668500018350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1668500018350 is an abundant number, since it is smaller than the sum of its proper divisors (1742686229882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1668500018350 is a wasteful number, since it uses less digits than its factorization.

1668500018350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275785161 (or 275785145 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 1668500018350 in words is "one trillion, six hundred sixty-eight billion, five hundred million, eighteen thousand, three hundred fifty".