1668231602606 has 8 divisors (see below), whose sum is σ = 2502799842744. Its totient is φ = 833964988360.

The previous prime is 1668231602603. The next prime is 1668231602617. The reversal of 1668231602606 is 6062061328661.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668231602603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75392645 + ... + 75414768.

It is an arithmetic number, because the mean of its divisors is an integer number (312849980343).

Almost surely, 2^{1668231602606} is an apocalyptic number.

1668231602606 is a deficient number, since it is larger than the sum of its proper divisors (834568240138).

1668231602606 is a wasteful number, since it uses less digits than its factorization.

1668231602606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150812946.

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 1668231602606 in words is "one trillion, six hundred sixty-eight billion, two hundred thirty-one million, six hundred two thousand, six hundred six".