1668084700 has 18 divisors (see below), whose sum is σ = 3619744016. Its totient is φ = 667233840.

The previous prime is 1668084697. The next prime is 1668084709. The reversal of 1668084700 is 74808661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668084709) 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 5 ways as a sum of consecutive naturals, for example, 8340324 + ... + 8340523.

Almost surely, 2^1668084700 is an apocalyptic number.

1668084700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1668084700 is an abundant number, since it is smaller than the sum of its proper divisors (1951659316).

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

1668084700 is a wasteful number, since it uses less digits than its factorization.

1668084700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16680861 (or 16680854 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 1668084700 is about 40842.1926443721. The cubic root of 1668084700 is about 1185.9672590628.

The spelling of 1668084700 in words is "one billion, six hundred sixty-eight million, eighty-four thousand, seven hundred".