1668525242352 has 40 divisors (see below), whose sum is σ = 4364918365440. Its totient is φ = 549134888640.

The previous prime is 1668525242347. The next prime is 1668525242387. The reversal of 1668525242352 is 2532425258661.

It is a junction number, because it is equal to n+sod(n) for n = 1668525242295 and 1668525242304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220002174 + ... + 220009757.

It is an arithmetic number, because the mean of its divisors is an integer number (109122959136).

Almost surely, 2^{1668525242352} is an apocalyptic number.

1668525242352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1668525242352 is an abundant number, since it is smaller than the sum of its proper divisors (2696393123088).

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

1668525242352 is a wasteful number, since it uses less digits than its factorization.

1668525242352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440012021 (or 440012015 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 51.

The spelling of 1668525242352 in words is "one trillion, six hundred sixty-eight billion, five hundred twenty-five million, two hundred forty-two thousand, three hundred fifty-two".