166846144271 has 8 divisors (see below), whose sum is σ = 168594488160. Its totient is φ = 165098377728.

The previous prime is 166846144243. The next prime is 166846144363. The reversal of 166846144271 is 172441648661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166846144271 is a prime.

It is a super-2 number, since 2×166846144271² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166846144471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449390 + ... + 731876.

It is an arithmetic number, because the mean of its divisors is an integer number (21074311020).

Almost surely, 2^166846144271 is an apocalyptic number.

166846144271 is a deficient number, since it is larger than the sum of its proper divisors (1748343889).

166846144271 is an equidigital number, since it uses as much as digits as its factorization.

166846144271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288673.

The product of its digits is 1548288, while the sum is 50.

The spelling of 166846144271 in words is "one hundred sixty-six billion, eight hundred forty-six million, one hundred forty-four thousand, two hundred seventy-one".