1668704480748 has 72 divisors (see below), whose sum is σ = 4240203968000. Its totient is φ = 553323060576.

The previous prime is 1668704480741. The next prime is 1668704480771. The reversal of 1668704480748 is 8470844078661.

1668704480748 is a `hidden beast` number, since 1 + 6 + 6 + 87 + 0 + 4 + 480 + 74 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (1668704480741) by changing a digit.

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, 38112093 + ... + 38155851.

Almost surely, 2^{1668704480748} is an apocalyptic number.

1668704480748 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1668704480748 is an abundant number, since it is smaller than the sum of its proper divisors (2571499487252).

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

1668704480748 is a wasteful number, since it uses less digits than its factorization.

1668704480748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49291 (or 49286 counting only the distinct ones).

The product of its (nonzero) digits is 57802752, while the sum is 63.

The spelling of 1668704480748 in words is "one trillion, six hundred sixty-eight billion, seven hundred four million, four hundred eighty thousand, seven hundred forty-eight".