1668500001870 has 32 divisors (see below), whose sum is σ = 4312430775072. Its totient is φ = 410707692672.

The previous prime is 1668500001869. The next prime is 1668500001893. The reversal of 1668500001870 is 781000058661.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2139102177 + ... + 2139102956.

It is an arithmetic number, because the mean of its divisors is an integer number (134763461721).

Almost surely, 2^{1668500001870} is an apocalyptic number.

1668500001870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1668500001870 is an abundant number, since it is smaller than the sum of its proper divisors (2643930773202).

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

1668500001870 is a wasteful number, since it uses less digits than its factorization.

1668500001870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278205156.

The product of its (nonzero) digits is 80640, while the sum is 42.

The spelling of 1668500001870 in words is "one trillion, six hundred sixty-eight billion, five hundred million, one thousand, eight hundred seventy".