1668050384677 has 8 divisors (see below), whose sum is σ = 1682857885464. Its totient is φ = 1653243691008.

The previous prime is 1668050384669. The next prime is 1668050384729. The reversal of 1668050384677 is 7764830508661.

It can be written as a sum of positive squares in 4 ways, for example, as 79565741476 + 1588484643201 = 282074^2 + 1260351^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1668050384677 - 2³ = 1668050384669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668050388677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4416933 + ... + 4779685.

It is an arithmetic number, because the mean of its divisors is an integer number (210357235683).

Almost surely, 2^{1668050384677} is an apocalyptic number.

It is an amenable number.

1668050384677 is a deficient number, since it is larger than the sum of its proper divisors (14807500787).

1668050384677 is a wasteful number, since it uses less digits than its factorization.

1668050384677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403559.

The product of its (nonzero) digits is 40642560, while the sum is 61.

The spelling of 1668050384677 in words is "one trillion, six hundred sixty-eight billion, fifty million, three hundred eighty-four thousand, six hundred seventy-seven".