1668333518352 has 30 divisors (see below), whose sum is σ = 4669016721902. Its totient is φ = 556111172736.

The previous prime is 1668333518323. The next prime is 1668333518363. The reversal of 1668333518352 is 2538153338661.

1668333518352 is a `hidden beast` number, since 1 + 6 + 6 + 83 + 335 + 183 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1600569098496 + 67764419856 = 1265136^2 + 260316^2 .

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

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, 5792824573 + ... + 5792824860.

Almost surely, 2^{1668333518352} is an apocalyptic number.

1668333518352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1668333518352 is an abundant number, since it is smaller than the sum of its proper divisors (3000683203550).

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

1668333518352 is a wasteful number, since it uses less digits than its factorization.

1668333518352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11585649447 (or 11585649438 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 54.

The spelling of 1668333518352 in words is "one trillion, six hundred sixty-eight billion, three hundred thirty-three million, five hundred eighteen thousand, three hundred fifty-two".