166044321006 has 16 divisors (see below), whose sum is σ = 332246880000. Its totient is φ = 55321734008.

The previous prime is 166044320993. The next prime is 166044321011. The reversal of 166044321006 is 600123440661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6579606 + ... + 6604793.

It is an arithmetic number, because the mean of its divisors is an integer number (20765430000).

Almost surely, 2^166044321006 is an apocalyptic number.

166044321006 is an abundant number, since it is smaller than the sum of its proper divisors (166202558994).

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

166044321006 is a wasteful number, since it uses less digits than its factorization.

166044321006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13186503.

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 166044321006 its reverse (600123440661), we get a palindrome (766167761667).

The spelling of 166044321006 in words is "one hundred sixty-six billion, forty-four million, three hundred twenty-one thousand, six".