66170445823 has 8 divisors (see below), whose sum is σ = 66625089920. Its totient is φ = 65716018200.

The previous prime is 66170445793. The next prime is 66170445851. The reversal of 66170445823 is 32854407166.

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 66170445823 - 2¹³ = 66170437631 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 (66170445853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 585136 + ... + 689002.

It is an arithmetic number, because the mean of its divisors is an integer number (8328136240).

Almost surely, 2^66170445823 is an apocalyptic number.

66170445823 is a deficient number, since it is larger than the sum of its proper divisors (454644097).

66170445823 is a wasteful number, since it uses less digits than its factorization.

66170445823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108237.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 66170445823 in words is "sixty-six billion, one hundred seventy million, four hundred forty-five thousand, eight hundred twenty-three".