1668094146439 has 16 divisors (see below), whose sum is σ = 1911224082240. Its totient is φ = 1426176495360.

The previous prime is 1668094146427. The next prime is 1668094146449. The reversal of 1668094146439 is 9346414908661.

It is a cyclic number.

It is not a de Polignac number, because 1668094146439 - 2³⁵ = 1633734408071 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 (1668094146449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4186969 + ... + 4568029.

It is an arithmetic number, because the mean of its divisors is an integer number (119451505140).

Almost surely, 2^{1668094146439} is an apocalyptic number.

1668094146439 is a deficient number, since it is larger than the sum of its proper divisors (243129935801).

1668094146439 is an equidigital number, since it uses as much as digits as its factorization.

1668094146439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382650.

The product of its (nonzero) digits is 26873856, while the sum is 61.

The spelling of 1668094146439 in words is "one trillion, six hundred sixty-eight billion, ninety-four million, one hundred forty-six thousand, four hundred thirty-nine".