70666120171 has 8 divisors (see below), whose sum is σ = 70741868400. Its totient is φ = 70590405600.

The previous prime is 70666120163. The next prime is 70666120181. The reversal of 70666120171 is 17102166607.

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 70666120171 - 2³ = 70666120163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70666120171.

It is not an unprimeable number, because it can be changed into a prime (70666120111) 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 7 ways as a sum of consecutive naturals, for example, 7132321 + ... + 7142221.

It is an arithmetic number, because the mean of its divisors is an integer number (8842733550).

Almost surely, 2^70666120171 is an apocalyptic number.

70666120171 is a deficient number, since it is larger than the sum of its proper divisors (75748229).

70666120171 is a wasteful number, since it uses less digits than its factorization.

70666120171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16829.

The product of its (nonzero) digits is 21168, while the sum is 37.

Adding to 70666120171 its reverse (17102166607), we get a palindrome (87768286778).

The spelling of 70666120171 in words is "seventy billion, six hundred sixty-six million, one hundred twenty thousand, one hundred seventy-one".