6668140880874 has 16 divisors (see below), whose sum is σ = 14548671012960. Its totient is φ = 2020648751760.

The previous prime is 6668140880749. The next prime is 6668140880887. The reversal of 6668140880874 is 4780880418666.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (66), and also a Moran number because the ratio is a prime number: 101032437589 = 6668140880874 / (6 + 6 + 6 + 8 + 1 + 4 + 0 + 8 + 8 + 0 + 8 + 7 + 4).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50516218729 + ... + 50516218860.

It is an arithmetic number, because the mean of its divisors is an integer number (909291938310).

Almost surely, 2^{6668140880874} is an apocalyptic number.

6668140880874 is an abundant number, since it is smaller than the sum of its proper divisors (7880530132086).

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

6668140880874 is a wasteful number, since it uses less digits than its factorization.

6668140880874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101032437605.

The product of its (nonzero) digits is 99090432, while the sum is 66.

The spelling of 6668140880874 in words is "six trillion, six hundred sixty-eight billion, one hundred forty million, eight hundred eighty thousand, eight hundred seventy-four".