1668335370048 has 42 divisors (see below), whose sum is σ = 4781982112674. Its totient is φ = 556111789824.

The previous prime is 1668335370029. The next prime is 1668335370049. The reversal of 1668335370048 is 8400735338661.

1668335370048 is a `hidden beast` number, since 1 + 6 + 68 + 3 + 3 + 537 + 0 + 0 + 48 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1651245560064 + 17089809984 = 1285008^2 + 130728^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1668335369976 and 1668335370003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668335370049) by changing a digit.

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, 1448207211 + ... + 1448208362.

Almost surely, 2^{1668335370048} is an apocalyptic number.

1668335370048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1668335370048 is an abundant number, since it is smaller than the sum of its proper divisors (3113646742626).

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

1668335370048 is a wasteful number, since it uses less digits than its factorization.

1668335370048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2896415591 (or 2896415578 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 1668335370048 in words is "one trillion, six hundred sixty-eight billion, three hundred thirty-five million, three hundred seventy thousand, forty-eight".