1668503366700 has 72 divisors (see below), whose sum is σ = 4828237348032. Its totient is φ = 444869628480.

The previous prime is 1668503366687. The next prime is 1668503366701. The reversal of 1668503366700 is 76633058661.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1668503366701) 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, 1683807 + ... + 2484393.

It is an arithmetic number, because the mean of its divisors is an integer number (67058852056).

Almost surely, 2^{1668503366700} is an apocalyptic number.

1668503366700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1668503366700 is an abundant number, since it is smaller than the sum of its proper divisors (3159733981332).

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

1668503366700 is a wasteful number, since it uses less digits than its factorization.

1668503366700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807551 (or 807544 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 51.

The spelling of 1668503366700 in words is "one trillion, six hundred sixty-eight billion, five hundred three million, three hundred sixty-six thousand, seven hundred".