66088838171 has 4 divisors (see below), whose sum is σ = 67494983712. Its totient is φ = 64682692632.

The previous prime is 66088838161. The next prime is 66088838173. The reversal of 66088838171 is 17183888066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66088838171 - 2⁶ = 66088838107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66088838173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703072700 + ... + 703072793.

It is an arithmetic number, because the mean of its divisors is an integer number (16873745928).

Almost surely, 2^66088838171 is an apocalyptic number.

66088838171 is a deficient number, since it is larger than the sum of its proper divisors (1406145541).

66088838171 is a wasteful number, since it uses less digits than its factorization.

66088838171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406145540.

The product of its (nonzero) digits is 3096576, while the sum is 56.

The spelling of 66088838171 in words is "sixty-six billion, eighty-eight million, eight hundred thirty-eight thousand, one hundred seventy-one".